KNOWLEDGE CENTER
Click on the Subject Matter bullet links below to access our Knowledge Library of Patents, Trademarks and Designs. This information is for educational purposes only and is not intended to be used as legal advice.
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Upcoming Changes to Extension Periods in Trademark Opposition and Section 45 Proceedings in Canada
Effective December 1, 2023, significant changes are coming to the Canadian Trademark Opposition Board's handling of opposition and Section 45 non-use cancellation proceedings. These changes aim to streamline the process and reduce the overall time taken for resolutions. Here’s what you need to know: Reduced Extension Times From December 1, 2023,...
Federal Court of Appeal Overturns Federal Court’s Test for Patentable Subject Matter of Computer-Implemented Inventions
In a recent Canadian decision, the Federal Court of Appeal (FCA) rejected the Federal Court’s (FC) attempt to provide a general test for determining the patentable subject matter of computer-implemented inventions. Specifically, the FCA found that the FC erred in imposing a test that was not based on any binding...
2023 FC 804: Energizer Brands, LLC v. Gillette Company
On July 6, 2023, the Federal Court of Canada announced its decision in a trademark dispute between Energizer Brands and the Gillette Company in a case about comparative advertising. In particular, this dispute involved Energizer and Duracell, the two leading battery brands in Canada. Moreover, Energizer asserted that Duracell's use...
Important Updates on Canadian Intellectual Property Regulations
This is to advise of some significant changes to the Canadian Intellectual Property regulations. These regulations pertain to the Patent Rules, Trademark Regulations, Industrial Design Regulations, and Copyright Regulations. Amendments to these Rules were registered on June 1st. They incorporate government fee increases of approximately 25%, as well as an expansion...
Canadian Patent Term Extension: A First Overview
The patent landscape in Canada is expected to undergo significant changes in the near future with the introduction of a new patent term extension provision. The new provision, which is set to come into effect on January 1, 2025 or by order in council, will grant additional term for a...
Frequently Asked Patent Questions and Answers
The following are frequently asked patent questions and answers. These questions and answers are provided for information purposes only and do not constitute legal patent advice. What is a patent? A patent is a legal monopoly granted by the government to inventors for a certain period of time, in exchange for publicly...
Should You Do a Patent Search Before Filing? Pros, Cons, and When It Makes Sense
What Is a Patent Search? A patent search means looking for existing patents that might affect your invention. This includes: Patents and applications in official databases (like the U.S. Patent Office or European Patent Office) Two Common Types of Searches Novelty Search (Patentability Search): Checks if your invention is new and non‑obvious—two key requirements for getting a...
Pros and Cons For Filing a US Provisional Patent Application
Pros for filing US provisional patent application: Low cost: Provisional patent applications are generally less expensive to prepare and file than non-provisional patent applications. Quicker filing: If time is a factor to file a patent application, Provisional patent applications can be filed faster than non-provisional patent applications, as they require...
2022 FC 923: Benjamin Moore and Co. v. Attorney General of Canada
Benjamin Moore & Co. appealed the decisions made by the Commissioner of Patents on CA 2,695,130 & CA 2,695,146 that the claims for these applications do not comprise patentable subject matter, under section 2 of the Patent Act, as the Commissioner determined the essential elements of each invention constituted a...
Federal Court of Appeal Confirms Flexibility in Section 45 Non‑Use Proceedings
Decision: Comité Interprofessionnel du Vin de Champagne & Institut National De L’origine Et De La Qualité v. Coors Brewing Company, 2026 FCA 2 (Jan. 9, 2026) Court: Federal Court of Appeal (Canada) Overview On January 9, 2026, the Federal Court of Appeal (“FCA”) ruled that section 45 of the Trademarks Act does not impose a fixed rule requiring a trademark owner to justify...
Trademark Confusion in Healthcare: Why Patients Matter in the Analysis
Introduction When it comes to trademark disputes in the pharmaceutical industry, the question of who counts as the relevant consumer can make or break a case. A recent decision of the Federal Court of Appeal in Samsung Bioepis Co., Ltd. v. Novartis AG (2025 FCA 212) sheds light on this issue....
Bad Faith Trademark Filings: Lessons from the Tress Wellness Case
When you build a brand, protecting it with a trademark is essential. But what happens when someone else registers your brand name before you do? A recent Federal Court decision in FXSWEDE AB v. Gengbin Xu (2025 FC 1864) sheds light on this issue. The case highlights how Canadian law...
Common Design and Patent Infringement: Lessons from Adeia v Videotron
In a noteable decision released on November 14, 2025, the Federal Court of Canada addressed and applied for the first time in a decision the doctrine of common design in the context of patent infringement. The case, Adeia Guides Inc. v Videotron Ltd., 2025 FC 1725, offers valuable insights for...
When an Inventor Represents Himself in Court: Justice Whyte Nowak’s Decision in Dusome v Canada
In a recent Federal Court ruling, Barry Dusome and Wyatt Dusome v Attorney General of Canada, Justice Allyson Whyte Nowak set aside a decision by the Commissioner of Patents that had rejected a long-pending patent application for a new poker-style card game. The case is notable not just for its...
Double Patenting in Canada: What Inventors Should Know from the NCS v. Kobold Case
Understanding Double Patenting and Divisional Patents If you're an inventor, entrepreneur, or business owner filing patents in Canada, you may have heard of double patenting. Double patenting is legal rule that prevents you from getting more than one patent for the same invention. This rule is especially important when filing divisional...
What Inventors Can Learn About Patent Claim Construction from the NCS v. Kobold Case
Understanding how patent claims are interpreted can make or break your intellectual property rights. A recent decision by the Federal Court of Appeal in NCS Multistage Inc. v. Kobold Corporation (2025 FCA 187) offers valuable lessons for inventors and businesses looking to protect their innovations through patents. In this post, we’ll...
Federal Court of Appeal Confirms Strict “Due Care” Standard for Patent Reinstatement
On September 5, 2025, the Federal Court of Appeal ruled in Canada (Attorney General) v. Matco Tools Corporation, 2025 FCA 156, reaffirming a strict “due care” standard for reinstating abandoned Canadian patents. This decision overturns a more flexible test from the Federal Court and highlights the high level of care...
CIPO Trademark Amendments Now in Force
Amendments to Canada’s Trademarks Act and Regulations took effect April 1, 2025. These changes are part of the Government of Canada’s Intellectual Property Strategy. They give the Registrar of Trademarks new powers and improve trademark procedures. Main Changes at a Glance Here are the key updates that took effect today: New authority...

