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Author name: Delara Emtyazi (Articling Student)

Ambiguity Strikes Again: The Court of Appeal Finds the Claims Ambiguous

IP Decisions /

On January 22, 2026, the Federal Court of Appeal (per Locke J.A, Roussel J.A., and Goyette J.A.) (“FCA”) upheld the Federal Court’s (“FC”) ruling that certain claims in AP&C ADVANCED POWDERS & COATINGS INC.’s Canadian Patents Nos. 3,003,502 and 3,051,236 (collectively, the “AP&C Patents”) were ambiguous and therefore invalid. This decision is notable for at […]

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Federal Court Outlines Test for Admitting New Evidence on Appeals From the Trademarks Opposition Board

Trademarks /

Co-authored with Marc Mitri On January 16, 2026, the Federal Court (per McHaffie J) held that the Trademarks Opposition Board (“Board”) erred in refusing registration of Products Unlimited, Inc.’s (“Applicant”) FILTER DESIGN trademark. Of note, this was the first judicial decision to consider the interpretation of subsection 56(5) of the Trademarks Act (effective April 1,

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Federal Court Goes All-In on Claim Construction in Assessing Patentable Subject Matter

IP Decisions /

Co-authored with Adam Haller On November 12, 2025, the Federal Court (per Whyte Nowak J.) held that the Commissioner of Patents (the “Commissioner”) made several errors of law in finding that an application for a “Method for Playing a Card Game” did not qualify as patentable subject matter under the Patent Act. The Court remitted

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What You Claim Is What You Get; The Disclosure Cannot Change It

IP Decisions /

On July 29, 2025, the Federal Court of Appeal (“FCA”) per Rennie J.A. dismissed an appeal from a trial judgment that found all claims in AGI Suretrack, LLC’s (“AGI”) 742 Patent invalid for anticipation or obviousness. AGI Suretrack, LLC v. Farmers Edge Inc. 2025 FCA 134 Background AGI’s 742 Patent relates to agricultural technology that

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Federal Court Makes Rare Holding that Patent Claims are Invalid for Ambiguity

IP Decisions /

Co-authored by Emily Papsin The Federal Court recently held (per McHaffie J.) that the impugned claims of two related patents for an additive manufacturing process (3D printing) were invalid and not infringed because an essential element (“depletion layer”) was ambiguous. Tekna Plasma Systems Inc. v. AP&C Advanced Powders & Coatings Inc., 2024 FC 871 Background

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Red Maple Manufacturing Inc. v. Red Maple Bio Inc. 2024 FC 817

IP Decisions /

On May 29, 2024, the Federal Court (Whyte Nowak J.) granted Red Maple Manufacturing Inc.’s (the “Applicant”) appeal pursuant to subsection 56(1) of the Trademarks Act. The Applicant appealed a decision from the Trademarks Opposition Board (“the Board”) ordering the removal of certain goods from the Applicant’s Trademark Registration. Red Maple Manufacturing Inc. v. Red

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