Patent Act
Disclaimer: This document is not the official version An Act respecting patents of invention SHORT TITLE Short title 1. This Act may be cited as the Patent Act. R.S., c. P-4, s. 1. INTERPRETATION Definitions 2. In this Act, except as otherwise provided, "applicant" includes an inventor and the legal representatives of an applicant or inventor; "claim date" means the date of a claim in an application for a patent in Canada, as determined in accordance with section 28.1; "Commissioner" means the Commissioner of Patents; "country" includes a Member of the World Trade Organization, as defined in subsection 2(1) of the World Trade Organization Agreement Implementation Act; "filing date" means, in relation to an application for a patent in Canada, the date on which the application is filed, as determined in accordance with section 28; "invention" means any new and useful art, process, machine, manufacture or composition of matter, or any new and useful improvement in any art, process, machine, manufacture or composition of matter; "legal representatives" includes heirs, executors, administrators, guardians, curators, tutors, assigns and all other persons claiming through or under applicants for patents and patentees of inventions; Minister" means the Minister of Industry or such other member of the Queen's Privy Council for Canada as is designated by the Governor in Council as the Minister for the purposes of this Act; "patent" means letters patent for an invention; "patentee" means the person for the time being entitled to the benefit of a patent; "predecessor in title" includes any person through whom an applicant for a patent in Canada claims the right to the patent; “prescribed" means prescribed by rules or regulations of the Governor in Council and, in the case of a fee, includes a fee determined in the manner prescribed; "prescribed fee" [Repealed, R.S., 1985, c. 33 (3rd Supp.), s. 1] "priority date" [Repealed, 1993, c. 15, s. 26] "regulation" and "rule" include rule, regulation and form; "request for priority" means a request under section 28.4 "work on a commercial scale" [Repealed, 1993, c. 44, s. 189] HER MAJESTY Binding on Her Majesty 2.1 This Act is binding on Her Majesty in right of Canada or a province. PATENT OFFICE AND OFFICERS Patent Office 3. There shall be attached to the Department of Industry, or to such other department of the Government of Canada as may be determined by the Governor in Council, an office called the Patent Office. Commissioner of Patents 4. (1) The Governor in Council may appoint a Commissioner of Patents who shall, under the direction of the Minister, exercise the powers and perform the duties conferred and imposed on that officer by or pursuant to this Act. Duties of Commissioner (2) The Commissioner shall receive all applications, fees, papers, documents and models for patents, shall perform and do all acts and things requisite for the granting and issuing of patents of invention, shall have the charge and custody of the books, records, papers, models, machines and other things belonging to the Patent Office and shall have, for the purposes of this Act, all the powers that are or may be given by the Inquiries Act to a commissioner appointed under Part II of that Act. Tenure of office and salary (3) The Commissioner holds office during pleasure and shall be paid such annual salary as may be determined by the Governor in Council. Delegation (4) The Commissioner may, after consultation with the Minister, delegate to any person he deems qualified any of his powers, duties and functions under this Act, except the power to delegate under this subsection. Appeal (5) Any decision under this Act of a person authorized to make the decision pursuant to subsection (4) may be appealed in the like manner and subject to the like conditions as a decision of the Commissioner under this Act. R.S., c. P-4, s. 4; 1984, c. 40, s. 57. Assistant Commissioner 5. (1) An Assistant Commissioner of Patents may be appointed in the manner authorized by law and shall be a technical officer experienced in the administration of the Patent Office. Absence or inability to act (2) When the Commissioner is absent or unable to act, the Assistant Commissioner, or, if he also is at the same time absent or unable to act, another officer designated by the Minister, may exercise the powers and shall perform the duties of the Commissioner. Staff 6. There may be appointed in the manner authorized by law such principal examiners, examiners, associate examiners and assistant examiners, clerks, stenographers and other assistants as are necessary for the administration of this Act. R.S., c. P-4, s. 6. Officers of Patent Office not to deal in patents 7. (1) No officer or employee of the Patent Office shall buy, sell, acquire or traffic in any invention, patent or right to a patent, or any interest therein, and every purchase, sale, assignment, acquisition or transfer of any invention, patent or right to a patent, or any interest therein, made by or to any officer or employee is void. Restriction (2) Subsection (1) does not apply to a sale by an original inventor or to an acquisition under the last will, or by the intestacy, of a deceased person. Clerical errors 8. Clerical errors in any instrument of record in the Patent Office do not invalidate the instrument, but they may be corrected under the authority of the Commissioner. Electronic or other submission of documents, information or fees 8.1 (1) Subject to the regulations, any document, information or fee that is authorized or required to be submitted to the Commissioner under this Act may be submitted in electronic or other form in any manner specified by the Commissioner. Time of receipt (2) For the purposes of this Act, any document, information or fee submitted in accordance with subsection (1) is deemed to be received by the Commissioner at the time provided by the regulations. Storage of documents or information in electronic or other form 8.2 Subject to the regulations, any document or information received by the Commissioner under this Act in electronic or other form may be entered or recorded by any information storage device, including any system of mechanical or electronic data processing, that is capable of reproducing stored documents or information in intelligible form within a reasonable time. Destroyed or lost patents 9. If any patent is destroyed or lost, a certified copy may be issued in lieu thereof on payment of the prescribed fee. R.S., c. P-4, s. 9. Inspection by the public 10. (1) Subject to subsections (2) to (6) and section 20, all patents, applications for patents and documents filed in connection with patents or applications for patents shall be open to public inspection at the Patent Office, under such conditions as may be prescribed. Confidentiality period (2) Except with the approval of the applicant, an application for a patent, or a document filed in connection with the application, shall not be open to public inspection before a confidentiality period of eighteen months has expired. Beginning of confidentiality period (3) The confidentiality period begins on the filing date of the application or, where a request for priority has been made in respect of the application, it begins on the earliest filing date of any previously regularly filed application on which the request is based. Withdrawal of request (4) Where a request for priority is withdrawn on or before the prescribed date, it shall, for the purposes of subsection (3) and to the extent that it is withdrawn, be considered never to have been made. Withdrawn applications (5) An application shall not be open to public inspection if it is withdrawn in accordance with the regulations on or before the prescribed date. Prescribed date (6) A prescribed date referred to in subsection (4) or (5) must be no later than the date on which the confidentiality period expires. Patents issued out of Canada 11. Notwithstanding the exception in section 10, the Commissioner, on the request of any person who states in writing the name of the inventor, if available, the title of the invention and the number and date of a patent said to have been granted in a named country other than Canada, and who pays or tenders the prescribed fee, shall inform that person whether an application for a patent of the same invention is or is not pending in Canada. R.S., c. P-4, s. 11. RULES AND REGULATIONS Rules and regulations 12. (1) The Governor in Council may make rules or regulations (a) respecting the form and contents of applications for patents; (b) respecting the form of the Register of Patents and of the indexes thereto; (c) respecting the registration of assignments, transmissions, disclaimers, judgments or other documents relating to any patent; (d) respecting the form and contents of any certificate issued pursuant to this Act; (e) prescribing the fees or the manner of determining the fees that may be charged in respect of the filing of applications for patents or the taking of other proceedings under this Act or under any rule or regulation made pursuant to this Act, or in respect of any services or the use of any facilities provided thereunder by the Commissioner or any person employed in the Patent Office; (f) prescribing the fees or the manner of determining the fees that shall be paid to maintain in effect an application for a patent or to maintain the rights accorded by a patent; (g) respecting the payment of any prescribed fees including the time when and the manner in which such fees shall be paid, the additional fees that may be charged for the late payment of such fees and the circumstances in which any fees previously paid may be refunded in whole or in part; (h) for carrying into effect the terms of any treaty, convention, arrangement or engagement that subsists between Canada and any other country; (i) for carrying into effect, notwithstanding anything in this Act, the Patent Cooperation Treaty done at Washington on June 19, 1970, including any amendments, modifications and revisions made from time to time to which Canada is a party; (j) respecting the entry on, the maintenance of and the removal from the register of patent agents of the names of persons and firms, including the qualifications that must be met and the conditions that must be fulfilled by a person or firm before the name of the person or firm is entered thereon and to maintain the name of the person or firm on the register; (j.1) respecting the submission of documents, information or fees under section 8.1, including (i) the documents, information or fees that may be submitted in electronic or other form under that section, (ii) the persons or classes of persons by whom they may be submitted, and (iii) the time at which they are deemed to be received by the Commissioner; (j.2) respecting the entering or recording of any document or information under section 8.2; (j.3) prescribing the manner in which an application for a patent may be withdrawn and, for the purposes of subsections 10(4) and (5), prescribing the date, or the manner of determining the date, on or before which a request for priority or an application for a patent must be withdrawn; (j.4) respecting requests for priority, including (i) the period within which priority must be requested, (ii) the manner in which and period within which the Commissioner must be informed of the matters referred to in subsection 28.4(2), (iii) the documentation that must be filed in support of requests for priority, and (iv) the withdrawal of requests for priority; (j.5) respecting the time within which requests for examination must be made and prescribed fees must be paid under subsection 35(1); (j.6) respecting the deposit of biological material for the purposes of section 38.1; (j.7) respecting the manner in which amendments may be made to specifications or drawings furnished as part of an application for a patent; (j.8) authorizing the Commissioner to extend, subject to any prescribed terms and conditions, the time fixed by or under this Act for doing anything where the Commissioner is satisfied that the circumstances justify the extension; (k) prescribing any other matter that by any provision of this Act is to be prescribed; and (l) generally, for carrying into effect the objects and purposes of this Act or for ensuring the due administration thereof by the Commissioner and other officers and employees of the Patent Office. Effect (2) Any rule or regulation made by the Governor in Council has the same force and effect as if it had been enacted herein. SEAL Seal of office 13. (1) The Commissioner shall cause a seal to be made for the purposes of this Act and may cause to be sealed therewith every patent and other instrument and copy thereof issuing from the Patent Office. Seal to be evidence (2) Every court, judge and person shall take notice of the seal of the Patent Office, shall admit the impressions thereof in evidence in like manner as the impressions of the Great Seal are admitted in evidence and shall take notice of and admit in evidence, without further proof and without production of the originals, all copies or extracts certified under the seal of the Patent Office to be copies of or extracts from documents deposited in that Office. PROOF OF PATENTS Certified copies of patents as evidence 14. In any action or proceeding respecting a patent authorized to be had or taken in Canada under this Act, a copy of any patent granted in any other country, or any official document connected therewith, purporting to be certified under the hand of the proper officer of the government of the country in which the patent has been obtained, may be produced before the court or a judge thereof, and the copy of the patent or document purporting to be so certified may be admitted in evidence without production of the original and without proof of the signature or official character of the person appearing to have signed it. PATENT AGENTS Register of patent agents 15. A register of patent agents shall be kept in the Patent Office on which shall be entered the names of all persons and firms entitled to represent applicants in the presentation and prosecution of applications for patents or in other business before the Patent Office Misconduct 16. For gross misconduct or any other cause that he may deem sufficient, the Commissioner may refuse to recognize any person as a patent agent or attorney either generally or in any particular case. APPEALS Practice on appeals 17. In all cases where an appeal is provided from the decision of the Commissioner to the Federal Court under this Act, the appeal shall be had and taken pursuant to the Federal Courts Act and the rules and practice of that Court. Notice on appeal 18. (1) Whenever an appeal to the Federal Court from the decision of the Commissioner is permitted under this Act, notice of the decision shall be mailed by the Commissioner by registered letter addressed to the interested parties or their respective agents. Time for taking appeal (2) The appeal shall be taken within three months after the date of mailing of the notice, unless otherwise provided by or under this Act. USE OF PATENTS BY GOVERNMENT Government may apply to use patented invention 19. (1) Subject to section 19.1, the Commissioner may, on application by the Government of Canada or the government of a province, authorize the use of a patented invention by that government. Terms of use (2) Subject to section 19.1, the use of the patented invention may be authorized for such purpose, for such period and on such other terms as the Commissioner considers expedient but the Commissioner shall settle those terms in accordance with the following principles: (a) the scope and duration of the use shall be limited to the purpose for which the use is authorized; (b) the use authorized shall be non-exclusive; and (c) any use shall be authorized predominantly to supply the domestic market. Notice (3) The Commissioner shall notify the patentee of any use of the patented invention that is authorized under this section. Payment of remuneration (4) Where the use of the patented invention is authorized, the authorized user shall pay to the patentee such amount as the Commissioner considers to be adequate remuneration in the circumstances, taking into account the economic value of the authorization. Termination of authorization (5) The Commissioner may, on application by the patentee and after giving all concerned parties an opportunity to be heard, terminate the authorization if the Commissioner is satisfied that the circumstances that led to the granting of the authorization have ceased to exist and are unlikely to recur, subject to such conditions as the Commissioner deems appropriate to protect the legitimate interests of the authorized user. Authorization not transferable (6) An authorization granted under this section is not transferable. Conditions for authorizing use 19.1 (1) The Commissioner may not authorize the use of a patented invention under section 19 unless the applicant establishes that (a) it has made efforts to obtain from the patentee on reasonable commercial terms and conditions the authority to use the patented invention; and (b) its efforts have not been successful within a reasonable period. Exception (2) Subsection (1) does not apply in cases of national emergency or extreme urgency or where the use for which the authorization is sought is a public non-commercial use. Prescribed uses (3) The Commissioner may not, under section 19, authorize any use that is a prescribed use unless the proposed user complies with the prescribed conditions. Limitation on use of semi-conductor technology (4) The Commissioner may not, under section 19, authorize any use of semi-conductor technology other than a public non-commercial use. Appeal 19.2 Any decision made by the Commissioner under section 19 or 19.1 is subject to appeal to the Federal Court. Regulations 19.3 (1) The Governor in Council may make regulations for the purpose of implementing, in relation to patents, Article 1720 of the Agreement. Definition of "Agreement"(2) In subsection (1), "Agreement" has the same meaning as in subsection 2(1) of the North American Free Trade Agreement Implementation Act. 1993, c. 44, s. 191. GOVERNMENT OWNED PATENTS Assignment to Minister of National Defence 20. (1) Any officer, servant or employee of the Crown or of a corporation that is an agent or servant of the Crown, who, acting within the scope of his duties and employment, invents any invention in instruments or munitions of war shall, if so required by the Minister of National Defence, assign to that Minister on behalf of Her Majesty all the benefits of the invention and of any patent obtained or to be obtained for the invention. (2) Any person other than a person described in subsection (1) who invents an invention described in that subsection may assign to the Minister of National Defence on behalf of Her Majesty all the benefits of the invention and of any patent obtained or to be obtained for the invention. Inventor entitled to compensation (3) An inventor described in subsection (2) is entitled to compensation for an assignment to the Minister of National Defence under this Act and in the event that the consideration to be paid for the assignment is not agreed on, it is the duty of the Commissioner to determine the amount of the consideration, which decision is subject to appeal to the Federal Court. Proceedings before Federal Court (4) Proceedings before the Federal Court under subsection (3) shall be held in camera on request made to the court by any party to the proceedings. Vesting on assignment (5) An assignment to the Minister of National Defence under this Act effectually vests the benefits of the invention and patent in the Minister of National Defence on behalf of Her Majesty, and all covenants and agreements therein contained for keeping the invention secret and otherwise are valid and effectual, notwithstanding any want of valuable consideration, and may be enforced accordingly by the Minister of National Defence. Person making assignment and person having knowledge thereof (6) Any person who has made an assignment to the Minister of National Defence under this section, in respect of any covenants and agreements contained in such assignment for keeping the invention secret and otherwise in respect of all matters relating to that invention, and any other person who has knowledge of such assignment and of such covenants and agreements, shall be, for the purposes of the Security of Information Act, deemed to be persons having in their possession or control information respecting those matters that has been entrusted to them in confidence by any person holding office under Her Majesty, and the communication of any of that information by the first mentioned persons to any person other than one to whom they are authorized to communicate with, by or on behalf of the Minister of National Defence, is an offence under section 4 of the Security of Information Act. Minister may submit application for patent (7) Where any agreement for an assignment to the Minister of National Defence under this Act has been made, the Minister of National Defence may submit an application for patent for the invention to the Commissioner, with the request that it be examined for patentability, and if the application is found allowable may, before the grant of any patent thereon, certify to the Commissioner that, in the public interest, the particulars of the invention and of the manner in which it is to be worked are to be kept secret. Secret application (8) If the Minister of National Defence so certifies, the application and specification, with the drawing, if any, and any amendment of the application, and any copies of those documents and the drawing and the patent granted thereon shall be placed in a packet sealed by the Commissioner under authority of the Minister of National Defence. Custody of secret application (9) The packet described in subsection (8) shall, until the expiration of the term during which a patent for the invention may be in force, be kept sealed by the Commissioner, and shall not be opened except under the authority of an order of the Minister of National Defence. Delivery of secret application (10) The packet described in subsection (8) shall be delivered at any time during the continuance of the patent to any person authorized by the Minister of National Defence to receive it, and shall, if returned to the Commissioner, be kept sealed by him. Delivery to Minister (11) On the expiration of the term of the patent, the packet described in subsection (8) shall be delivered to the Minister of National Defence. Revocation (12) No proceeding by petition or otherwise lies to have declared invalid or void a patent granted for an invention in relation to which a certificate has been given by the Minister of National Defence under subsection (7), except by permission of the Minister. Prohibition of publication and inspection (13) No copy of any specification or other document or drawing in respect of an invention and patent, by this section required to be placed in a sealed packet, shall in any manner whatever be published or open to the inspection of the public, but, except as otherwise provided in this section, this Act shall apply in respect of the invention and patent. Waiver by Minister (14) The Minister of National Defence may at any time waive the benefit of this section with respect to any particular invention, and the specification, documents and drawing relating thereto shall thereafter be kept and dealt with in the regular way. Rights protected (15) No claim shall be allowed in respect of any infringement of a patent that occurred in good faith during the time that the patent was kept secret under this section, and any person who, before the publication of the patent, had in good faith done any act that, but for this subsection would have given rise to a claim, is entitled, after the publication, to obtain a licence to manufacture, use and sell the patented invention on such terms as may, in the absence of agreement between the parties, be settled by the Commissioner or by the Federal Court on appeal from the Commissioner. Communication to Minister (16) The communication of any invention for any improvement in munitions of war to the Minister of National Defence, or to any person or persons authorized by the Minister of National Defence to investigate the invention or the merits thereof, shall not, nor shall anything done for the purposes of the investigation, be deemed use or publication of the invention so as to prejudice the grant or validity of any patent for the invention. Order to keep non-assigned application secret (17) The Governor in Council, if satisfied that an invention relating to any instrument or munition of war, described in any specified application for patent not assigned to the Minister of National Defence, is vital to the defence of Canada and that the publication of a patent therefor should be prevented in order to preserve the safety of the State, may order that the invention and application and all the documents relating thereto shall be treated for all purposes of this section as if the invention had been assigned or agreed to be assigned to the Minister of National Defence. Rules (18) The Governor in Council may make rules for the purpose of ensuring secrecy with respect to applications and patents to which this section applies and generally to give effect to the purpose and intent thereof. R.S., 1985, c. P-4, s. 20; 2001, c. 41, s. 36. Agreement between Canada and other government 21. Where by any agreement between the Government of Canada and any other government it is provided that the Government of Canada will apply section 20 to inventions disclosed in any application for a patent assigned or agreed to be assigned by the inventor to that other government, and the Commissioner is notified by any minister of the Crown that the agreement extends to an invention in a specified application, the application and all the documents relating thereto shall be dealt with as provided in section 20, except subsections (3) and (4), as if the invention had been assigned or agreed to be assigned to the Minister of National Defence. R.S., c. P-4, s. 21. PATENTS RELATING TO NUCLEAR ENERGY Communication to Canadian Nuclear Safety Commission 22. Any application for a patent for an invention that, in the opinion of the Commissioner, relates to the production, application or use of nuclear energy shall, before it is dealt with by an examiner appointed pursuant to section 6 or is open to inspection by the public under section 10, be communicated by the Commissioner to the Canadian Nuclear Safety Commission. GENERAL Patented invention in vessels, aircraft, etc., of any country 23. No patent shall extend to prevent the use of any invention in any ship, vessel, aircraft or land vehicle of any country entering Canada temporarily or accidentally, if the invention is employed exclusively for the needs of the ship, vessel, aircraft or land vehicle, and not so used for the manufacture of any goods to be sold within or exported from Canada. R.S., c. P-4, s. 23. 24. [Repealed, R.S., 1985, c. 33 (3rd Supp.), s. 6] Cost of proceedings before the court 25. In all proceedings before any court under this Act, the costs of the Commissioner are in the discretion of the court, but the Commissioner shall not be ordered to pay the costs of any other of the parties. R.S., c. P-4, s. 25. Annual report 26. The Commissioner shall, in each year, cause to be prepared and laid before Parliament a report of the proceedings under this Act. R.S., 1985, c. P-4, s. 26; R.S., 1985, c. 33 (3rd Supp.), s. 7. Publication of list of patents 26.1 (1) The Commissioner shall, at least once in each year, publish a list of all patents issued in the year. Publication and printing of documents (2) The Commissioner may publish any document open to the inspection of the public under section 10 and may print or cause to be printed, for distribution or sale, any such document. APPLICATION FOR PATENTS Commissioner may grant patents 27. (1) The Commissioner shall grant a patent for an invention to the inventor or the inventor's legal representative if an application for the patent in Canada is filed in accordance with this Act and all other requirements for the issuance of a patent under this Act are met. Application requirements (2) The prescribed application fee must be paid and the application must be filed in accordance with the regulations by the inventor or the inventor's legal representative and the application must contain a petition and a specification of the invention. Specification (3) The specification of an invention must (a) correctly and fully describe the invention and its operation or use as contemplated by the inventor; (b) set out clearly the various steps in a process, or the method of constructing, making, compounding or using a machine, manufacture or composition of matter, in such full, clear, concise and exact terms as to enable any person skilled in the art or science to which it pertains, or with which it is most closely connected, to make, construct, compound or use it; (c) in the case of a machine, explain the principle of the machine and the best mode in which the inventor has contemplated the application of that principle; and (d) in the case of a process, explain the necessary sequence, if any, of the various steps, so as to distinguish the invention from other inventions. Claims (4) The specification must end with a claim or claims defining distinctly and in explicit terms the subject-matter of the invention for which an exclusive privilege or property is claimed. Alternative definition of subject-matter (5) For greater certainty, where a claim defines the subject-matter of an invention in the alternative, each alternative is a separate claim for the purposes of sections 2, 28.1 to 28.3 and 78.3. When application to be completed (6) Where an application does not completely meet the requirements of subsection (2) on its filing date, the Commissioner shall, by notice to the applicant, require the application to be completed on or before the date specified in the notice. Specified period (7) The specified date must be at least three months after the date of the notice and at least twelve months after the filing date of the application. What may not be patented (8) No patent shall be granted for any mere scientific principle or abstract theorem. Maintenance fees 27.1 (1) An applicant for a patent shall, to maintain the application in effect, pay to the Commissioner such fees, in respect of such periods, as may be prescribed. (2) and (3) [Repealed, 1993, c. 15, s. 32] R.S., 1985, c. 33 (3rd Supp.), s. 9; 1993, c. 15, s. 32. Filing date 28. (1) The filing date of an application for a patent in Canada is the date on which the Commissioner receives the documents, information and fees prescribed for the purposes of this section or, if they are received on different dates, the last date. Deemed date of receipt of fees (2) The Commissioner may, for the purposes of this section, deem prescribed fees to have been received on a date earlier than the date of their receipt if the Commissioner considers it just to do so. R.S., 1985, c. P-4, s. 28; R.S., 1985, c. 33 (3rd Supp.), s. 10; 1993, c. 15, s. 33. Claim date 28.1 (1) The date of a claim in an application for a patent in Canada (the "pending application") is the filing date of the application, unless (a) the pending application is filed by (i) a person who has, or whose agent, legal representative or predecessor in title has, previously regularly filed in or for Canada an application for a patent disclosing the subject-matter defined by the claim, or (ii) a person who is entitled to protection under the terms of any treaty or convention relating to patents to which Canada is a party and who has, or whose agent, legal representative or predecessor in title has, previously regularly filed in or for any other country that by treaty, convention or law affords similar protection to citizens of Canada an application for a patent disclosing the subject-matter defined by the claim; (b) the filing date of the pending application is within twelve months after the filing date of the previously regularly filed application; and (c) the applicant has made a request for priority on the basis of the previously regularly filed application. Claims based on previously regularly filed applications (2) In the circumstances described in paragraphs (1)(a) to (c), the claim date is the filing date of the previously regularly filed application. Subject-matter of claim must not be previously disclosed 28.2 (1) The subject-matter defined by a claim in an application for a patent in Canada (the "pending application") must not have been disclosed (a) more than one year before the filing date by the applicant, or by a person who obtained knowledge, directly or indirectly, from the applicant, in such a manner that the subject-matter became available to the public in Canada or elsewhere; (b) before the claim date by a person not mentioned in paragraph (a) in such a manner that the subject-matter became available to the public in Canada or elsewhere; (c) in an application for a patent that is filed in Canada by a person other than the applicant, and has a filing date that is before the claim date; or (d) in an application (the "co-pending application") for a patent that is filed in Canada by a person other than the applicant and has a filing date that is on or after the claim date if (i) the co-pending application is filed by (A) a person who has, or whose agent, legal representative or predecessor in title has, previously regularly filed in or for Canada an application for a patent disclosing the subject-matter defined by the claim, or (B) a person who is entitled to protection under the terms of any treaty or convention relating to patents to which Canada is a party and who has, or whose agent, legal representative or predecessor in title has, previously regularly filed in or for any other country that by treaty, convention or law affords similar protection to citizens of Canada an application for a patent disclosing the subject-matter defined by the claim, (ii) the filing date of the previously regularly filed application is before the claim date of the pending application, (iii) the filing date of the co-pending application is within twelve months after the filing date of the previously regularly filed application, and (iv) the applicant has, in respect of the co-pending application, made a request for priority on the basis of the previously regularly filed application. Withdrawal of application (2) An application mentioned in paragraph (1)(c) or a co-pending application mentioned in paragraph (1)(d) that is withdrawn before it is open to public inspection shall, for the purposes of this section, be considered never to have been filed. Invention must not be obvious 28.3 The subject-matter defined by a claim in an application for a patent in Canada must be subject-matter that would not have been obvious on the claim date to a person skilled in the art or science to which it pertains, having regard to (a) information disclosed more than one year before the filing date by the applicant, or by a person who obtained knowledge, directly or indirectly, from the applicant in such a manner that the information became available to the public in Canada or elsewhere; and (b) information disclosed before the claim date by a person not mentioned in paragraph (a) in such a manner that the information became available to the public in Canada or elsewhere. Request for priority 28.4 (1) For the purposes of sections 28.1, 28.2 and 78.3, an applicant for a patent in Canada may request priority in respect of the application on the basis of one or more previously regularly filed applications. Requirements governing request (2) The request for priority must be made in accordance with the regulations and the applicant must inform the Commissioner of the filing date, country or office of filing and number of each previously regularly filed application on which the request is based. Withdrawal of request (3) An applicant may, in accordance with the regulations, withdraw a request for priority, either entirely or with respect to one or more previously regularly filed applications. Multiple previously regularly filed applications (4) Where two or more applications have been previously regularly filed as described in paragraph 28.1(1)(a), subparagraph 28.2(1)(d)(i) or paragraph 78.3(1)(a) or (2)(a), either in the same country or in different countries, (a) paragraph 28.1(1)(b), subparagraph 28.2(1)(d)(iii) or paragraph 78.3(1)(b) or (2)(b), as the case may be, shall be applied using the earliest filing date of the previously regularly filed applications; and (b) subsection 28.1(2), subparagraph 28.2(1)(d)(ii) or paragraph 78.3(1)(d) or (2)(d), as the case may be, shall be applied using the earliest filing date of the previously regularly filed applications on the basis of which a request for priority is made. Withdrawal, etc., of previously regularly filed applications (5) A previously regularly filed application mentioned in section 28.1 or 28.2 or subsection 78.3(1) or (2) shall, for the purposes of that section or subsection, be considered never to have been filed if (a) it was filed more than twelve months before the filing date of (i) the pending application, in the case of section 28.1, (ii) the co-pending application, in the case of section 28.2, (iii) the later application, in the case of subsection 78.3(1), or (iv) the earlier application, in the case of subsection 78.3(2); (b) before the filing date referred to in paragraph (a), another application (i) is filed by the person who filed the previously regularly filed application or by the agent, legal representative or predecessor in title of that person, (ii) is filed in or for the country where the previously regularly filed application was filed, and (iii) discloses the subject-matter defined by the claim in the application mentioned in paragraph (a); and (c) on the filing date of the other application mentioned in paragraph (b) or, if there is more than one such application, on the earliest of their filing dates, the previously regularly filed application (i) has been withdrawn, abandoned or refused without having been opened to public inspection and without leaving any rights outstanding, and (ii) has not served as a basis for a request for priority in any country, including Canada. Non-resident applicants 29. (1) An applicant for a patent who does not appear to reside or carry on business at a specified address in Canada shall, on the filing date of the application, appoint as a representative a person or firm residing or carrying on business at a specified address in Canada. Nominee deemed representative (2) Subject to this section, a nominee of an applicant shall be deemed to be the representative for all purposes of this Act, including the service of any proceedings taken under it, of the applicant and of any patentee of a patent issued on his application who does not appear to reside or carry on business at a specified address in Canada, and shall be recorded as such by the Commissioner. New representatives (3) An applicant for a patent or a patentee (a) may, by giving notice to the Commissioner, appoint a new representative in place of the latest recorded representative, or may give notice to the Commissioner of a change in the address of the latest recorded representative; and (b) shall so appoint a new representative or supply a new and correct address of the latest recorded representative on receipt of a request of the Commissioner stating that the latest recorded representative has died or that a letter addressed to the latest recorded representative at the latest recorded address and sent by ordinary mail has been returned undelivered. Where no new appointment is made or no new address supplied (4) Where the Commissioner makes a request under paragraph (3)(b) and no new appointment is made or no new and correct address is supplied by the applicant or patentee within three months, the Federal Court or the Commissioner may dispose of any proceedings under this Act without requiring service on the applicant or patentee of any process in the proceedings. When fee payable (5) No fee is payable on the appointment of a new representative or the supply of a new and correct address, unless that appointment or supply follows a request by the Commissioner under subsection (3), in which case the prescribed fee is payable. 30. [Repealed, 1993, c. 15, s. 35] JOINT APPLICATIONS Effect of refusal of a joint inventor to proceed 31. (1) Where an invention is made by two or more inventors and one of them refuses to make application for a patent or his whereabouts cannot be ascertained after diligent inquiry, the other inventors or their legal representatives may make application, and a patent may be granted in the name of the inventors who make the application, on satisfying the Commissioner that the joint inventor has refused to make application or that his whereabouts cannot be ascertained after diligent inquiry. Powers of Commissioner (2) In any case where (a) an applicant has agreed in writing to assign a patent, when granted, to another person or to a joint applicant and refuses to proceed with the application, or (b) disputes arise between joint applicants with respect to proceeding with an application, the Commissioner, on proof of the agreement to his satisfaction, or if satisfied that one or more of the joint applicants ought to be allowed to proceed alone, may allow that other person or joint applicant to proceed with the application, and may grant a patent to him in such manner that all persons interested are entitled to be heard before the Commissioner after such notice as he may deem requisite and sufficient. Procedure when one joint applicant retires (3) Where an application is filed by joint applicants and it subsequently appears that one or more of them has had no part in the invention, the prosecution of the application may be carried on by the remaining applicant or applicants on satisfying the Commissioner by affidavit that the remaining applicant or applicants is or are the sole inventor or inventors. Joining applicants (4) Where an application is filed by one or more applicants and it subsequently appears that one or more further applicants should have been joined, the further applicant or applicants may be joined on satisfying the Commissioner that he or they should be so joined, and that the omission of the further applicant or applicants had been by inadvertence or mistake and was not for the purpose of delay. To whom granted (5) Subject to this section, in cases of joint applications, the patent shall be granted in the names of all the applicants. Appeal (6) An appeal lies to the Federal Court from the decision of the Commissioner under this section. IMPROVEMENTS Improvements 32. Any person who has invented any improvement on any patented invention may obtain a patent for the improvement, but he does not thereby obtain the right of making, vending or using the original invention, nor does the patent for the original invention confer the right of making, vending or using the patented improvement. 34. [Repealed, 1993, c. 15, s. 36] FILING OF PRIOR ART Filing 34.1 (1) Any person may file with the Commissioner prior art, consisting of patents, applications for patents open to public inspection and printed publications, that the person believes has a bearing on the patentability of any claim in an application for a patent. Pertinency (2) A person who files prior art with the Commissioner under subsection (1) shall explain the pertinency of the prior art. R.S., 1985, c. 33 (3rd Supp.), s. 11; 1993, c. 15, s. 37. EXAMINATION Request for examination 35. (1) The Commissioner shall, on the request of any person made in such manner as may be prescribed and on payment of a prescribed fee, cause an application for a patent to be examined by competent examiners to be employed in the Patent Office for that purpose. Required examination (2) The Commissioner may by notice require an applicant for a patent to make a request for examination pursuant to subsection (1) or to pay the prescribed fee within the time specified in the notice, but the specified time may not exceed the time provided by the regulations for making the request and paying the fee. (3) and (4) [Repealed, 1993, c. 15, s. 38] R.S., 1985, c. P-4, s. 35; R.S., 1985, c. 33 (3rd Supp.), s. 12; 1993, c. 15, s. 38. DIVISIONAL APPLICATIONS Patent for one invention only 36. (1) A patent shall be granted for one invention only but in an action or other proceeding a patent shall not be deemed to be invalid by reason only that it has been granted for more than one invention. Limitation of claims by applicant (2) Where an application (the "original application") describes more than one invention, the applicant may limit the claims to one invention only, and any other invention disclosed may be made the subject of a divisional application, if the divisional application is filed before the issue of a patent on the original application. Limitation of claims on direction of Commissioner (2.1) Where an application (the "original application") describes and claims more than one invention, the applicant shall, on the direction of the Commissioner, limit the claims to one invention only, and any other invention disclosed may be made the subject of a divisional application, if the divisional application is filed before the issue of a patent on the original application. Original application abandoned (3) If an original application mentioned in subsection (2) or (2.1) becomes abandoned, the time for filing a divisional application terminates with the expiration of the time for reinstating the original application under this Act. Separate applications (4) A divisional application shall be deemed to be a separate and distinct application under this Act, to which its provisions apply as fully as may be, and separate fees shall be paid on the divisional application and it shall have the same filing date as the original application. DRAWINGS, MODELS AND BIOLOGICAL MATERIALS Drawings 37. (1) In the case of a machine, or in any other case in which an invention admits of illustration by means of drawings, the applicant shall, as part of the application, furnish drawings of the invention that clearly show all parts of the invention. Particulars (2) Each drawing must include references corresponding with the specification, and the Commissioner may require further drawings or dispense with any of them as the Commissioner sees fit. Models and specimens 38. (1) In all cases in which an invention admits of representation by model, the applicant, if required by the Commissioner, shall furnish a model of convenient size exhibiting its several parts in due proportion, and when an invention is a composition of matter, the applicant, if required by the Commissioner, shall furnish specimens of the ingredients, and of the composition, sufficient in quantity for the purpose of experiment. Dangerous substances (2) If the ingredients or composition referred to in subsection (1) are of an explosive or dangerous character, they shall be furnished with such precautions as are specified in the requisition therefor. 13. Biological material may be deposited 38.1 (1) Where a specification refers to a deposit of biological material and the deposit is in accordance with the regulations, the deposit shall be considered part of the specification and, to the extent that subsection 27(3) cannot otherwise reasonably be complied with, the deposit shall be taken into consideration in determining whether the specification complies with that subsection. Deposit not required (2) For greater certainty, a reference to a deposit of biological material in a specification does not create a presumption that the deposit is required for the purpose of complying with subsection 27(3). 1993, c. 15, s. 41. AMENDMENTS TO SPECIFICATIONS AND DRAWINGS Amendments to specifications and drawings 38.2 (1) Subject to subsections (2) and (3) and the regulations, the specification and any drawings furnished as part of an application for a patent in Canada may be amended before the patent is issued. Restriction on amendments to specifications (2) The specification may not be amended to describe matter not reasonably to be inferred from the specification or drawings as originally filed, except in so far as it is admitted in the specification that the matter is prior art with respect to the application. Restriction on amendments to drawings (3) Drawings may not be amended to add matter not reasonably to be inferred from the specification or drawings as originally filed, except in so far as it is admitted in the specification that the matter is prior art with respect to the application. REFUSAL OF PATENTS Refusal by Commissioner 40. Whenever the Commissioner is satisfied that an applicant is not by law entitled to be granted a patent, he shall refuse the application and, by registered letter addressed to the applicant or his registered agent, notify the applicant of the refusal and of the ground or reason therefor. Appeal to Federal Court 41. Every person who has failed to obtain a patent by reason of a refusal of the Commissioner to grant it may, at any time within six months after notice as provided for in section 40 has been mailed, appeal from the decision of the Commissioner to the Federal Court and that Court has exclusive jurisdiction to hear and determine the appeal. GRANT OF PATENTS Contents of patent 42. Every patent granted under this Act shall contain the title or name of the invention, with a reference to the specification, and shall, subject to this Act, grant to the patentee and the patentee's legal representatives for the term of the patent, from the granting of the patent, the exclusive right, privilege and liberty of making, constructing and using the invention and selling it to others to be used, subject to adjudication in respect thereof before any court of competent jurisdiction. FORM AND TERM OF PATENTS Form and duration of patents 43. (1) Subject to section 46, every patent granted under this Act shall be issued under the seal of the Patent Office, and shall bear on its face the filing date of the application for the patent, the date on which the application became open to public inspection under section 10, the date on which the patent is granted and issued and any prescribed information. Validity of patent (2) After the patent is issued, it shall, in the absence of any evidence to the contrary, be valid and avail the patentee and the legal representatives of the patentee for the term mentioned in section 44 or 45, whichever is applicable. Term of patents based on applications filed on or after October 1, 1989 44. Subject to section 46, where an application for a patent is filed under this Act on or after October 1, 1989, the term limited for the duration of the patent is twenty years from the filing date. Term of patents based on applications filed before October 1, 1989 45. (1) Subject to section 46, where an application for a patent is filed under this Act before October 1, 1989, the term limited for the duration of the patent is seventeen years from the date on which the patent is issued. Term from date of issue or filing (2) Where the term limited for the duration of a patent referred to in subsection (1) had not expired before the day on which this section came into force, the term is seventeen years from the date on which the patent is issued or twenty years from the filing date, whichever term expires later. Maintenance fees 46. (1) A patentee of a patent issued by the Patent Office under this Act after the coming into force of this section shall, to maintain the rights accorded by the patent, pay to the Commissioner such fees, in respect of such periods, as may be prescribed. Lapse of term if maintenance fees not paid (2) Where the fees payable under subsection (1) are not paid within the time provided by the regulations, the term limited for the duration of the patent shall be deemed to have expired at the end of that time. REISSUE OF PATENTS Issue of new or amended patents 47. (1) Whenever any patent is deemed defective or inoperative by reason of insufficient description and specification, or by reason of the patentee's claiming more or less than he had a right to claim as new, but at the same time it appears that the error arose from inadvertence, accident or mistake, without any fraudulent or deceptive intention, the Commissioner may, on the surrender of the patent within four years from its date and the payment of a further prescribed fee, cause a new patent, in accordance with an amended description and specification made by the patentee, to be issued to him for the same invention for the then unexpired term for which the original patent was granted. Effect of new patent (2) The surrender referred to in subsection (1) takes effect only on the issue of the new patent, and the new patent and the amended description and specification have the same effect in law, on the trial of any action thereafter commenced for any cause subsequently accruing, as if the amended description and specification had been originally filed in their corrected form before the issue of the original patent, but, in so far as the claims of the original and reissued patents are identical, the surrender does not affect any action pending at the time of reissue or abate any cause of action then existing, and the reissued patent to the extent that its claims are identical with the original patent constitutes a continuation thereof and has effect continuously from the date of the original patent. Separate patents for separate parts (3) The Commissioner may entertain separate applications and cause patents to be issued for distinct and separate parts of the invention patented, on payment of the fee for a reissue for each of the reissued patents. DISCLAIMERS Patentee may disclaim anything included in patent by mistake 48. (1) Whenever, by any mistake, accident or inadvertence, and without any wilful intent to defraud or mislead the public, a patentee has (a) made a specification too broad, claiming more than that of which the patentee or the person through whom the patentee claims was the inventor, or (b) in the specification, claimed that the patentee or the person through whom the patentee claims was the inventor of any material or substantial part of the invention patented of which the patentee was not the inventor, and to which the patentee had no lawful right, the patentee may, on payment of a prescribed fee, make a disclaimer of such parts as the patentee does not claim to hold by virtue of the patent or the assignment thereof. Form and attestation of disclaimer (2) A disclaimer shall be filed in the prescribed form and manner. (3) [Repealed, 1993, c. 15, s. 44] Pending suits not affected (4) No disclaimer affects any action pending at the time when it is made, unless there is unreasonable neglect or delay in making it. Death of patentee (5) In case of the death of an original patentee or of his having assigned the patent, a like right to disclaim vests in his legal representatives, any of whom may exercise it. Effect of disclaimer (6) A patent shall, after disclaimer as provided in this section, be deemed to be valid for such material and substantial part of the invention, definitely distinguished from other parts thereof claimed without right, as is not disclaimed and is truly the invention of the disclaimant, and the disclaimant is entitled to maintain an action or suit in respect of that part accordingly. RE-EXAMINATION Request for re-examination 48.1 (1) Any person may request a re-examination of any claim of a patent by filing with the Commissioner prior art, consisting of patents, applications for patents open to public inspection and printed publications, and by paying a prescribed fee. Pertinency of request (2) A request for re-examination under subsection (1) shall set forth the pertinency of the prior art and the manner of applying the prior art to the claim for which re-examination is requested. Notice to patentee (3) Forthwith after receipt of a request for re-examination under subsection (1), the Commissioner shall send a copy of the request to the patentee of the patent in respect of which the request is made, unless the patentee is the person who made the request. R.S., 1985, c. 33 (3rd Supp.), s. 18; 1993, c. 15, s. 45. Establishment of re-examination board 48.2 (1) Forthwith after receipt of a request for re-examination under subsection 48.1(1), the Commissioner shall establish a re-examination board consisting of not fewer than three persons, at least two of whom shall be employees of the Patent Office, to which the request shall be referred for determination. Determination to be made by board (2) A re-examination board shall, within three months following its establishment, determine whether a substantial new question of patentability affecting any claim of the patent concerned is raised by the request for re-examination. Notice (3) Where a re-examination board has determined that a request for re-examination does not raise a substantial new question affecting the patentability of a claim of the patent concerned, the board shall so notify the person who filed the request and the decision of the board is final for all purposes and is not subject to appeal or to review by any court. Idem (4) Where a re-examination board has determined that a request for re-examination raises a substantial new question affecting the patentability of a claim of the patent concerned, the board shall notify the patentee of the determination and the reasons therefor. Filing of reply (5) A patentee who receives notice under subsection (4) may, within three months of the date of the notice, submit to the re-examination board a reply to the notice setting out submissions on the question of the patentability of the claim of the patent in respect of which the notice was given. R.S., 1985, c. 33 (3rd Supp.), s. 18; 1993, c. 15, s. 46(F). Re-examination proceeding 48.3 (1) On receipt of a reply under subsection 48.2(5) or in the absence of any reply within three months after notice is given under subsection 48.2(4), a re-examination board shall forthwith cause a re-examination to be made of the claim of the patent in respect of which the request for re-examination was submitted. Patentee may submit amendments (2) In any re-examination proceeding under subsection (1), the patentee may propose any amendment to the patent or any new claims in relation thereto but no proposed amendment or new claim enlarging the scope of a claim of the patent shall be permitted. Time limitation (3) A re-examination proceeding in respect of a claim of a patent shall be completed within twelve months of the commencement of the proceedings under subsection (1). R.S., 1985, c. 33 (3rd Supp.), s. 18. Certificate of board 48.4 (1) On conclusion of a re-examination proceeding in respect of a claim of a patent, the re-examination board shall issue a certificate (a) cancelling any claim of the patent determined to be unpatentable; (b) confirming any claim of the patent determined to be patentable; or (c) incorporating in the patent any proposed amended or new claim determined to be patentable. Certificate attached to patent (2) A certificate issued in respect of a patent under subsection (1) shall be attached to the patent and made part thereof by reference, and a copy of the certificate shall be sent by registered mail to the patentee. Effect of certificate (3) For the purposes of this Act, where a certificate issued in respect of a patent under subsection (1) (a) cancels any claim but not all claims of the patent, the patent shall be deemed to have been issued, from the date of grant, in the corrected form; (b) cancels all claims of the patent, the patent shall be deemed never to have been issued; or (c) amends any claim of the patent or incorporates a new claim in the patent, the amended claim or new claim shall be effective, from the date of the certificate, for the unexpired term of the patent. Appeals (4) Subsection (3) does not apply until the time for taking an appeal has expired under subsection 48.5(2) and, if an appeal is taken, subsection (3) applies only to the extent provided in the final judgment on the appeal. R.S., 1985, c. 33 (3rd Supp.), s. 18; 1993, c. 15, s. 47. Appeals 48.5 (1) Any decision of a re-examination board set out in a certificate issued under subsection 48.4(1) is subject to appeal by the patentee to the Federal Court. Limitation (2) No appeal may be taken under subsection (1) after three months from the date a copy of the certificate is sent by registered mail to the patentee. R.S., 1985, c. 33 (3rd Supp.), s. 18. ASSIGNMENTS AND DEVOLUTIONS Assignee or personal representatives 49. (1) A patent may be granted to any person to whom an inventor, entitled under this Act to obtain a patent, has assigned in writing or bequeathed by his last will his right to obtain it, and, in the absence of an assignment or bequest, the patent may be granted to the personal representatives of the estate of the deceased inventor. Assignees may object (2) Where an applicant for a patent has, after filing the application, assigned his right to obtain the patent, or where the applicant has either before or after filing the application assigned in writing the whole or part of his property or interest in the invention, the assignee may register the assignment in the Patent Office in such manner as may be determined by the Commissioner, and no application for a patent may be withdrawn without the consent in writing of every such registered assignee. Attestation (3) No assignment shall be registered in the Patent Office unless it is accompanied by the affidavit of a subscribing witness or established by other proof to the satisfaction of the Commissioner that the assignment has been signed and executed by the assignor. R.S., 1985, c. P-4, s. 49; R.S., 1985, c. 33 (3rd Supp.), s. 19. Patents to be assignable 50. (1) Every patent issued for an invention is assignable in law, either as to the whole interest or as to any part thereof, by an instrument in writing. Registration (2) Every assignment of a patent, and every grant and conveyance of any exclusive right to make and use and to grant to others the right to make and use the invention patented, within and throughout Canada or any part thereof, shall be registered in the Patent Office in the manner determined by the Commissioner. Attestation (3) No assignment, grant or conveyance shall be registered in the Patent Office unless it is accompanied by the affidavit of a subscribing witness or established by other proof to the satisfaction of the Commissioner that the assignment, grant or conveyance has been signed and executed by the assignor and by every other party thereto. R.S., 1985, c. P-4, s. 50; R.S., 1985, c. 33 (3rd Supp.), s. 20. When assignment void 51. Every assignment affecting a patent for invention, whether it is one referred to in section 49 or 50, is void against any subsequent assignee, unless the assignment is registered as prescribed by those sections, before the registration of the instrument under which the subsequent assignee claims. R.S., c. P-4, s. 53. Jurisdiction of Federal Court 52. The Federal Court has jurisdiction, on the application of the Commissioner or of any person interested, to order that any entry in the records of the Patent Office relating to the title to a patent be varied or expunged. R.S., c. P-4, s. 54; R.S., c. 10(2nd Supp.), s. 64. LEGAL PROCEEDINGS IN RESPECT OF PATENTS Void in certain cases, or valid only for parts 53. (1) A patent is void if any material allegation in the petition of the applicant in respect of the patent is untrue, or if the specification and drawings contain more or less than is necessary for obtaining the end for which they purport to be made, and the omission or addition is wilfully made for the purpose of misleading. Exception (2) Where it appears to a court that the omission or addition referred to in subsection (1) was an involuntary error and it is proved that the patentee is entitled to the remainder of his patent, the court shall render a judgment in accordance with the facts, and shall determine the costs, and the patent shall be held valid for that part of the invention described to which the patentee is so found to be entitled. Copies of judgment (3) Two office copies of the judgment rendered under subsection (1) shall be furnished to the Patent Office by the patentee, one of which shall be registered and remain of record in the Office and the other attached to the patent and made a part of it by a reference thereto. R.S., c. P-4, s. 55. INFRINGEMENT Jurisdiction of courts 54. (1) An action for the infringement of a patent may be brought in that court of record that, in the province in which the infringement is said to have occurred, has jurisdiction, pecuniarily, to the amount of the damages claimed and that, with relation to the other courts of the province, holds its sittings nearest to the place of residence or of business of the defendant, and that court shall decide the case and determine the costs, and assumption of jurisdiction by the court is of itself sufficient proof of jurisdiction. Jurisdiction of Federal Court (2) Nothing in this section impairs the jurisdiction of the Federal Court under section 20 of the Federal Courts Act or otherwise. R.S., 1985, c. P-4, s. 54; 2002, c. 8, s. 182. Liability for patent infringement 55. (1) A person who infringes a patent is liable to the patentee and to all persons claiming under the patentee for all damage sustained by the patentee or by any such person, after the grant of the patent, by reason of the infringement. Liability damage before patent is granted (2) A person is liable to pay reasonable compensation to a patentee and to all persons claiming under the patentee for any damage sustained by the patentee or by any of those persons by reason of any act on the part of that person, after the application for the patent became open to public inspection under section 10 and before the grant of the patent, that would have constituted an infringement of the patent if the patent had been granted on the day the application became open to public inspection under that section. Patentee to be a party (3) Unless otherwise expressly provided, the patentee shall be or be made a party to any proceeding under subsection (1) or (2). Deemed action for infringement (4) For the purposes of this section and sections 54 and 55.01 to 59, any proceeding under subsection (2) is deemed to be an action for the infringement of a patent and the act on which that proceeding is based is deemed to be an act of infringement of the patent. R.S., 1985, c. P-4, s. 55; R.S., 1985, c. 33 (3rd Supp.), s. 21; 1993, c. 15, s. 48. Limitation55.01 No remedy may be awarded for an act of infringement committed more than six years before the commencement of the action for infringement. 1993, c. 15, s. 48. Burden of proof for patented process 55.1 In an action for infringement of a patent granted for a process for obtaining a new product, any product that is the same as the new product shall, in the absence of proof to the contrary, be considered to have been produced by the patented process. 1993, c. 2, s. 4, c. 44, s. 193. Exception 55.2 (1) It is not an infringement of a patent for any person to make, construct, use or sell the patented invention solely for uses reasonably related to the development and submission of information required under any law of Canada, a province or a country other than Canada that regulates the manufacture, construction, use or sale of any product. (2) and (3) [Repealed, 2001, c. 10, s. 2] Regulations (4) The Governor in Council may make such regulations as the Governor in Council considers necessary for preventing the infringement of a patent by any person who makes, constructs, uses or sells a patented invention in accordance with subsection (1), including, without limiting the generality of the foregoing, regulations (a) respecting the conditions that must be fulfilled before a notice, certificate, permit or other document concerning any product to which a patent may relate may be issued to a patentee or other person under any Act of Parliament that regulates the manufacture, construction, use or sale of that product, in addition to any conditions provided for by or under that Act; (b) respecting the earliest date on which a notice, certificate, permit or other document referred to in paragraph (a) that is issued or to be issued to a person other than the patentee may take effect and respecting the manner in which that date is to be determined; (c) governing the resolution of disputes between a patentee or former patentee and any person who applies for a notice, certificate, permit or other document referred to in paragraph (a) as to the date on which that notice, certificate, permit or other document may be issued or take effect; (d) conferring rights of action in any court of competent jurisdiction with respect to any disputes referred to in paragraph (c) and respecting the remedies that may be sought in the court, the procedure of the court in the matter and the decisions and orders it may make; and (e) generally governing the issue of a notice, certificate, permit or other document referred to in paragraph (a) in circumstances where the issue of that notice, certificate, permit or other document might result directly or indirectly in the infringement of a patent. Inconsistency or conflict (5) In the event of any inconsistency or conflict between (a) this section or any regulations made under this section, and (b) any Act of Parliament or any regulations made thereunder, this section or the regulations made under this section shall prevail to the extent of the inconsistency or conflict. For greater certainty (6) For greater certainty, subsection (1) does not affect any exception to the exclusive property or privilege granted by a patent that exists at law in respect of acts done privately and on a non-commercial scale or for a non-commercial purpose or in respect of any use, manufacture, construction or sale of the patented invention solely for the purpose of experiments that relate to the subject-matter of the patent. 1993, c. 2, s. 4; 2001, c. 10, s. 2. Patent not to affect previous purchaser 56. (1) Every person who, before the claim date of a claim in a patent has purchased, constructed or acquired the subject matter defined by the claim, has the right to use and sell to others the specific article, machine, manufacture or composition of matter patented and so purchased, constructed or acquired without being liable to the patentee or the legal representatives of the patentee for so doing. Non-application (2) Subsection (1) does not apply in respect of a purchase, construction or acquisition referred to in subsection (3) or (4). Special case (3) Section 56 of the Patent Act, as it read immediately before the day on which subsection (1) came into force, applies in respect of a purchase, construction or acquisition made before that day of an invention for which a patent is issued on the basis of an application filed after October 1, 1989 and before the day on which subsection (1) came into force. Idem (4) Section 56 of the Patent Act, as it read immediately before October 1, 1989, applies in respect of a purchase, construction or acquisition made before the day on which subsection (1) came into force of an invention for which a patent is issued before October 1, 1989 or is issued after October 1, 1989 on the basis of an application filed before October 1, 1989. R.S., 1985, c. P-4, s. 56; R.S., 1985, c. 33 (3rd Supp.), s. 22; 1993, c. 44, ss. 194, 199. Injunction may issue 57. (1) In any action for infringement of a patent, the court, or any judge thereof, may, on the application of the plaintiff or defendant, make such order as the court or judge sees fit, (a) restraining or enjoining the opposite party from further use, manufacture or sale of the subject-matter of the patent, and for his punishment in the event of disobedience of that order, or (b) for and respecting inspection or account, and generally, respecting the proceedings in the action. Appeal (2) An appeal lies from any order made under subsection (1) in the same circumstances and to the same court as from other judgments or orders of the court in which the order is made. R.S., c. P-4, s. 59. Invalid claims not to affect valid claims 58. When, in any action or proceeding respecting a patent that contains two or more claims, one or more of those claims is or are held to be valid but another or others is or are held to be invalid or void, effect shall be given to the patent as if it contained only the valid claim or claims. R.S., c. P-4, s. 60. Defence 59. The defendant, in any action for infringement of a patent may plead as matter of defence any fact or default which by this Act or by law renders the patent void, and the court shall take cognizance of that pleading and of the relevant facts and decide accordingly. R.S., c. P-4, s. 61. IMPEACHMENT Impeachment of patents or claims 60. (1) A patent or any claim in a patent may be declared invalid or void by the Federal Court at the instance of the Attorney General of Canada or at the instance of any interested person. Declaration as to infringement (2) Where any person has reasonable cause to believe that any process used or proposed to be used or any article made, used or sold or proposed to be made, used or sold by him might be alleged by any patentee to constitute an infringement of an exclusive property or privilege granted thereby, he may bring an action in the Federal Court against the patentee for a declaration that the process or article does not or would not constitute an infringement of the exclusive property or privilege. Security for costs (3) With the exception of the Attorney General of Canada or the attorney general of a province, the plaintiff in any action under this section shall, before proceeding therein, give security for the costs of the patentee in such sum as the Federal Court may direct, but a defendant in any action for the infringement of a patent is entitled to obtain a declaration under this section without being required to furnish any security. R.S., c. P-4, s. 62; R.S., c. 10(2nd Supp.), s. 64. 61. [Repealed, R.S., 1985, c. 33 (3rd Supp.), s. 23] JUDGMENTS Judgment voiding patent 62. A certificate of a judgment voiding in whole or in part any patent shall, at the request of any person filing it to make it a record in the Patent Office, be registered in the Patent Office, and the patent, or such part as is voided, shall thereupon be and be held to have been void and of no effect, unless the judgment is reversed on appeal as provided in section 63. R.S., 1985, c. P-4, s. 62; 1993, c. 15, s. 49. Appeal 63. Every judgment voiding in whole or in part or refusing to void in whole or in part any patent is subject to appeal to any court having appellate jurisdiction in other cases decided by the court by which the judgment was rendered. R.S., c. P-4, s. 65. CONDITIONS 64. [Repealed, 1993, c. 44, s. 195] Abuse of rights under patents 65. (1) The Attorney General of Canada or any person interested may, at any time after the expiration of three years from the date of the grant of a patent, apply to the Commissioner alleging in the case of that patent that there has been an abuse of the exclusive rights thereunder and asking for relief under this Act. What amounts to abuse (2) The exclusive rights under a patent shall be deemed to have been abused in any of the following circumstances: (a) and (b) [Repealed, 1993, c. 44, s. 196] (c) if the demand for the patented article in Canada is not being met to an adequate extent and on reasonable terms; (d) if, by reason of the refusal of the patentee to grant a licence or licences on reasonable terms, the trade or industry of Canada or the trade of any person or class of persons trading in Canada, or the establishment of any new trade or industry in Canada, is prejudiced, and it is in the public interest that a licence or licences should be granted; (e) if any trade or industry in Canada, or any person or class of persons engaged therein, is unfairly prejudiced by the conditions attached by the patentee, whether before or after the passing of this Act, to the purchase, hire, licence or use of the patented article or to the using or working of the patented process; or (f) if it is shown that the existence of the patent, being a patent for an invention relating to a process involving the use of materials not protected by the patent or for an invention relating to a substance produced by such a process, has been utilized by the patentee so as unfairly to prejudice in Canada the manufacture, use or sale of any materials. (3) and (4) [Repealed, 1993, c. 44, s. 196] Definition of "patented article" (5) For the purposes of this section, the expression "patented article" includes articles made by a patented process. R.S., 1985, c. P-4, s. 65; 1993, c. 2, s. 5, c. 15, s. 51, c. 44, s. 196. Powers of Commissioner in cases of abuse 66. (1) On being satisfied that a case of abuse of the exclusive rights under a patent has been established, the Commissioner may exercise any of the following powers as he may deem expedient in the circumstances: (a) he may order the grant to the applicant of a licence on such terms as the Commissioner may think expedient, including a term precluding the licensee from importing into Canada any goods the importation of which, if made by persons other than the patentee or persons claiming under him, would be an infringement of the patent, and in that case the patentee and all licensees for the time being shall be deemed to have mutually covenanted against that importation; (b) [Repealed, 1993, c. 44, s. 197] (c) if the Commissioner is satisfied that the exclusive rights have been abused in the circumstances specified in paragraph 65(2)(f), he may order the grant of licences to the applicant and to such of his customers, and containing such terms, as the Commissioner may think expedient; (d) if the Commissioner is satisfied that the objects of this section and section 65 cannot be attained by the exercise of any of the foregoing powers, the Commissioner shall order the patent to be revoked, either forthwith or after such reasonable interval as may be specified in the order, unless in the meantime such conditions as may be specified in the order with a view to attaining the objects of this section and section 65 are fulfilled, and the Commissioner may, on reasonable cause shown in any case, by subsequent order extend the interval so specified, but the Commissioner shall not make an order for revocation which is at variance with any treaty, convention, arrangement, or engagement with any other country to which Canada is a party; or (e) if the Commissioner is of opinion that the objects of this section and section 65 will be best attained by not making an order under the provisions of this section, he may make an order refusing the application and dispose of any question as to costs thereon as he thinks just. Proceedings to prevent infringement (2) A licensee under paragraph (1)(a) is entitled to call on the patentee to take proceedings to prevent infringement of the patent, and if the patentee refuses or neglects to do so within two months after being so called on, the licensee may institute proceedings for infringement in his own name as though he were the patentee, making the patentee a defendant, but a patentee added as defendant is not liable for any costs unless he enters an appearance and takes part in the proceedings. Service on patentee (3) Service on a patentee added as a defendant may be effected by leaving the writ at his address or at the address of his representative for service as appearing in the records of the Patent Office. Considerations by which Commissioner to be guided (4) In settling the terms of a licence under paragraph (1)(a), the Commissioner shall be guided as far as possible by the following considerations: (a) he shall endeavour to secure the widest possible use of the invention in Canada consistent with the patentee deriving a reasonable advantage from his patent rights; (b) he shall endeavour to secure to the patentee the maximum advantage consistent with the invention being worked by the licensee at a reasonable profit in Canada; and (c) he shall endeavour to secure equality of advantage among the several licensees, and for this purpose may, on due cause being shown, reduce the royalties or other payments accruing to the patentee under any licence previously granted. R.S., 1985, c. P-4, s. 66; R.S., 1985, c. 33 (3rd Supp.), s. 24; 1993, c. 44, s. 197. 67. [Repealed, 1993, c. 44, s. 198] Contents of applications 68. (1) Every application presented to the Commissioner under section 65 or 66 shall (a) set out fully the nature of the applicant's interest, the facts on |