100+ Free CPATA Patent Knowledge Practice Questions

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Under section 58 and related provisions, if one or more claims of a Canadian patent are found invalid, the remaining valid claims:

Must be re-examined before they can be enforced

Are automatically invalidated as well

Remain valid and enforceable; invalidity of some claims does not affect the validity of the others

Are valid only if the patentee files a disclaimer

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Canadian Trademark Agent Knowledge Examination (CPATA)

Practice Questions100 questions

2026 Statistics

Key Facts: CPATA Patent Knowledge Exam

~135

Multiple-Choice Questions

CPATA Patent Agent Knowledge Examination

~4 hours

Exam Duration (closed-book, online)

CPATA

CAD $365

Exam Fee (plus applicable taxes)

CPATA (2026)

30 months

PCT National-Phase Entry Deadline in Canada

Patent Rules (SOR/2019-251)

20 years

Patent Term from Filing Date

Patent Act (RSC 1985, c. P-4)

100+

Practice Questions Here

OpenExamPrep question bank

The Canadian Patent Agent Knowledge Examination, administered by CPATA, is an online, closed-book test of approximately 135 multiple-choice questions over about four hours, costing CAD $365 plus taxes. It tests foundational patent-related technical competencies: patentability (novelty under s.28.2, obviousness under s.28.3, utility, and subject matter under s.2), patent prosecution and examination, application requirements and claims under s.27, priority and PCT national-phase entry (30 months), ownership and assignment, maintenance fees, amendments, re-examination, and the Paris Convention. Results are reported as 'competency demonstrated' or 'competency not yet demonstrated' against a criterion-referenced standard. Demonstrating competency is required before sitting the separate Skills Examinations.

Sample CPATA Patent Knowledge Practice Questions

Try these sample questions to test your CPATA Patent Knowledge exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under section 2 of the Canadian Patent Act, which of the following is the correct statutory definition of an "invention"?

A.Any new and useful art, process, machine, manufacture or composition of matter, or any new and useful improvement thereof

B.Any technical creation that is novel, inventive and capable of industrial application

C.Any product or method that solves a previously unsolved technical problem

D.Any novel idea or discovery that advances scientific knowledge

Explanation: Section 2 of the Patent Act defines "invention" as 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. This statutory definition sets the categories of patentable subject matter in Canada.

2In Harvard College v. Canada (Commissioner of Patents), 2002 SCC 76, the Supreme Court of Canada held that a genetically modified mouse (the "oncomouse") was:

A.Patentable only with respect to the process used to create it, not the animal itself

B.Not patentable subject matter because a higher life form is neither a "manufacture" nor a "composition of matter"

C.Patentable because it was new, useful and non-obvious

D.Patentable as a composition of matter under section 2

Explanation: In a 5-4 decision, the Supreme Court held that a higher life form such as a mouse is not patentable subject matter because it is not a "manufacture" or "composition of matter" within the meaning of "invention" in section 2. The process and certain lower life forms remained patentable, but the higher life form per se did not.

3Which provision of the Patent Act codifies the novelty (anticipation) requirement for the subject matter of a claim?

A.Section 2

B.Section 28.3

C.Section 28.2

D.Section 27(8)

Explanation: Section 28.2 sets out the anticipation/novelty requirement: the subject matter of a claim must not have been disclosed before the claim date in a way that made it available to the public. It is distinct from section 28.3, which deals with obviousness.

4Canada provides a grace period for an applicant's own pre-filing disclosures. Under paragraph 28.2(1)(a), disclosures derived from the applicant do NOT anticipate a claim if made within what period before the filing date?

A.Eighteen months

B.There is no grace period; any prior disclosure anticipates

C.Six months

D.Twelve months

Explanation: Paragraph 28.2(1)(a) provides a 12-month grace period: a disclosure made by the applicant, or by someone who obtained knowledge from the applicant, does not anticipate the claim if it occurred within the one-year period immediately preceding the filing date. Third-party independent disclosures under paragraph 28.2(1)(b) are judged as of the claim date with no grace period.

5The obviousness (non-obviousness) requirement is assessed under section 28.3 from the perspective of:

A.A person skilled in the art or science to which the subject matter relates

B.An expert with the highest level of specialization in the field

C.The inventor at the time the invention was conceived

D.The patent examiner of ordinary skill

Explanation: Section 28.3 requires that the subject matter of a claim not have been obvious on the claim date to a person skilled in the art or science to which it relates. The Sanofi (2008 SCC 61) four-step approach (identify the skilled person, the inventive concept, the differences, and whether they would have been obvious) operationalizes this test.

6The four-step obviousness framework widely applied in Canada, including the "obvious to try" inquiry in appropriate cases, was set out by the Supreme Court of Canada in which decision?

A.Free World Trust v. Électro Santé Inc., 2000 SCC 66

B.Apotex Inc. v. Sanofi-Synthelabo Canada Inc., 2008 SCC 61

C.Whirlpool Corp. v. Camco Inc., 2000 SCC 67

D.AstraZeneca Canada Inc. v. Apotex Inc., 2017 SCC 36

Explanation: Apotex Inc. v. Sanofi-Synthelabo Canada Inc., 2008 SCC 61, adopted the four-step obviousness approach and recognized the "obvious to try" inquiry where the nature of the field makes it appropriate. It remains the governing framework for section 28.3 analysis.

7In AstraZeneca Canada Inc. v. Apotex Inc., 2017 SCC 36, the Supreme Court of Canada addressed the requirement of utility. What did the Court decide?

A.It held that utility is not a requirement under the Patent Act

B.It confirmed the "promise of the patent" doctrine as the proper standard for utility

C.It rejected the promise doctrine; a scintilla of utility related to the subject matter of the claims is sufficient

D.It held that utility must be demonstrated by post-filing clinical data

Explanation: In AstraZeneca, the Supreme Court rejected the "promise of the patent" doctrine as an unsound approach to utility. The correct test is whether the subject matter of the claim has a scintilla of utility, i.e., is useful, related to the nature of the subject matter. Utility may be demonstrated or soundly predicted at the filing date.

8Where utility is not actually demonstrated as of the filing date, a Canadian patent may still be valid if utility is established by:

A.Demonstrating commercial success after issuance

B.A declaration that the invention is useful filed with the Commissioner

C.A sworn statement of the inventor's belief in utility

D.The doctrine of sound prediction, requiring a factual basis, a sound line of reasoning, and proper disclosure

Explanation: Under the doctrine of sound prediction (Apotex v. Wellcome Foundation, 2002 SCC 77), utility can be soundly predicted if there is a factual basis for the prediction, an articulable and sound line of reasoning, and proper disclosure. The prediction must be sound as of the filing date.

9Section 27(8) of the Patent Act provides that no patent shall be granted for:

A.A mere scientific principle or abstract theorem

B.A computer program in any form

C.A new use of a known compound

D.A method of medical treatment of the human body

Explanation: Section 27(8) states that no patent shall be granted for any mere scientific principle or abstract theorem. This is the statutory basis for excluding abstract ideas and disembodied algorithms from patentability.

10In Canada (Attorney General) v. Amazon.com Inc., 2011 FCA 328, the Federal Court of Appeal addressed the patentability of a computer-implemented "one-click" business method. The Court held that:

A.Business methods are categorically excluded from patentability in Canada

B.A claim is patentable subject matter if it forms part of a practical embodiment with physical existence or that manifests a discernible physical effect or change, and the matter was remitted to the Commissioner

C.All software is patentable as a machine under section 2

D.Business methods are patentable only if they produce a commercial advantage

Explanation: The FCA declined to adopt a categorical bar on business methods. Patentable subject matter must be something with physical existence or that manifests a discernible effect or change; the case was sent back to the Commissioner, who ultimately granted the patent. CIPO assesses computer-implemented inventions under a purposive construction approach.

About the CPATA Patent Knowledge Exam

The Canadian Patent Agent Knowledge Examination is administered online by the College of Patent Agents and Trademark Agents (CPATA) in a closed-book format. It consists of approximately 135 multiple-choice questions (four options each) over about four hours and assesses the foundational, knowledge-based technical competencies needed for patent agent practice in Canada. It is grounded in the Patent Act (RSC 1985, c. P-4), the Patent Rules (SOR/2019-251), the Manual of Patent Office Practice (MOPOP), and leading Canadian patent jurisprudence. Demonstrating competency on the Knowledge Examination is a prerequisite to registering for the separate, limited open-book Skills Examinations.

Questions

135 scored questions

Time Limit

Approximately 4 hours (online, closed-book)

Passing Score

Competency demonstrated (criterion-referenced minimum standard)

Exam Fee

CAD $365 + applicable taxes (College of Patent Agents and Trademark Agents (CPATA))

CPATA Patent Knowledge Exam Content Outline

25%

Patentability

Novelty and anticipation under s.28.2 (including the 12-month grace period and whole-contents rule), obviousness under s.28.3 (Sanofi four-step test, obvious-to-try), utility (scintilla, sound prediction, AstraZeneca rejection of the promise doctrine), and patentable subject matter under s.2 (Harvard College higher life forms, Amazon computer-implemented inventions, s.27(8) abstract theorems, methods of medical treatment)

25%

Patent Prosecution & Examination

Deferred examination and the 4-year request deadline, examiner's reports and 4-month response period, abandonment and reinstatement, final action and Patent Appeal Board review, notice of allowance and final fee, divisional applications (s.36) and unity of invention, excess-claim fees and request for continued examination (RCE)

15%

Application Requirements & Claims

Section 27 petition and specification, subsection 27(3) sufficiency and enablement, subsection 27(4) claims defining the monopoly, purposive claim construction (Whirlpool, Free World Trust), independent vs. dependent claims, comprising vs. consisting of, and sound claim-drafting principles

15%

Priority, PCT & Paris Convention

Claim date under s.28.1, priority requests under s.28.4, the 12-month Paris Convention period and restoration of priority, the principles of national treatment and independence of patents, and PCT national-phase entry in Canada at 30 months (42-month late entry with an unintentional-failure statement)

10%

Patent Rights, Maintenance & Term

Exclusive rights under s.42, 20-year term from the filing date, maintenance fees payable from the second anniversary, infringement remedies (injunction, damages or accounting), prior-user rights under s.56, reasonable compensation for the laid-open period under s.55, and territoriality

Amendments, Re-examination & Corrections

The no-new-matter rule under s.38.2, reissue under s.47, disclaimer under s.46, correction of clerical errors under s.8, and re-examination under s.48.1 based on documentary prior art raising a substantial new question of patentability

Ownership, Professional Conduct & MOPOP

Inventorship and entitlement, assignment and recording under s.49, employee inventions, the CPATA Code of Professional Conduct, conflicts of interest, agent-client privilege, s.53 misrepresentation, and the role of MOPOP and CIPO practice

How to Pass the CPATA Patent Knowledge Exam

What You Need to Know

Passing score: Competency demonstrated (criterion-referenced minimum standard)
Exam length: 135 questions
Time limit: Approximately 4 hours (online, closed-book)
Exam fee: CAD $365 + applicable taxes

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CPATA Patent Knowledge Study Tips from Top Performers

1Learn the key section numbers cold: s.2 (invention), s.27 (application requirements and sufficiency), s.28.1 (claim date), s.28.2 (anticipation/novelty), s.28.3 (obviousness), s.28.4 (priority), s.38.2 (no new matter), s.42 (exclusive rights), and s.48.1 (re-examination) - the exam rewards precise statutory recall

2Master the prosecution timeline: request examination within 4 years of filing, respond to an office action within 4 months (two-month extension available), pay the final fee after allowance, and pay maintenance fees from the second anniversary of the filing date

3Know the 12-month grace period rule in paragraph 28.2(1)(a) applies only to disclosures by or derived from the applicant - independent third-party disclosures under 28.2(1)(b) have no grace period and are judged as of the claim date

4Memorize the leading cases and what each decided: Harvard College (higher life forms unpatentable), Sanofi (obviousness and anticipation/selection patents), AstraZeneca (promise doctrine rejected, scintilla of utility), Whirlpool and Free World Trust (purposive construction), and Schmeiser (infringement by use)

5For PCT and priority questions, distinguish the 12-month Paris Convention priority period, the 30-month national-phase entry deadline (42 months with an unintentional statement), and the 14-month restoration-of-priority window - these deadlines are frequently tested

6Use MOPOP to understand CIPO practice on computer-implemented inventions, methods of medical treatment, and use claims, but remember MOPOP is guidance, not law - the Patent Act and Rules prevail in any conflict

Frequently Asked Questions

What is the format of the Canadian Patent Agent Knowledge Examination?

The Knowledge Examination is administered online by CPATA in a closed-book format. It consists of approximately 135 multiple-choice questions, each with four answer options, completed over about four hours. It is distinct from the Skills Examinations, which are taken in a limited open-book format and test drafting and analysis skills.

How much does the exam cost and who administers it?

The Patent Agent Knowledge Examination costs CAD $365 plus applicable taxes. It is administered by the College of Patent Agents and Trademark Agents (CPATA), the national body that regulates and licenses patent agents and trademark agents in Canada in the public interest.

What subjects are tested on the Knowledge Examination?

The exam tests foundational, knowledge-based technical competencies in Canadian patent law: patentability (novelty under s.28.2, obviousness under s.28.3, utility, and subject matter under s.2), patent prosecution and examination, application requirements and claims under s.27, priority and PCT national-phase entry, ownership and assignment, maintenance fees, amendments, re-examination, and the Paris Convention, all grounded in the Patent Act, Patent Rules, and MOPOP.

How is the exam scored and what is the passing standard?

Results are reported as 'competency demonstrated' or 'competency not yet demonstrated.' The minimum passing standard is criterion-referenced and determined through a systematic standard-setting process rather than a fixed percentage or a curve. 'Competency demonstrated' indicates the entry-level foundational knowledge needed to support future learning and practice.

Who is eligible to sit the Knowledge Examination?

Candidates must be registered with CPATA as a Class 3 patent agent in training. Those who have completed at least 12 months of approved supervised training by the examination date may attempt the Knowledge Examination. Demonstrating competency on this exam, plus 24 months of supervised training, is required before registering for the Skills Examinations.

When must a PCT application enter the national phase in Canada?

A PCT international application must enter the Canadian national phase by 30 months from the earliest priority date as of right. For international filing dates on or after October 30, 2019, late entry up to 42 months requires a reinstatement request, the prescribed fees, and a statement that the failure to meet the 30-month deadline was unintentional.