ARTICLES

Explore articles covering Patents, Trademarks, and Designs, including news, insights, and practical information. Use the topic tabs below to explore each area of intellectual property. All content is for educational purposes only and does not constitute legal advice.

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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...

Magnifying glass highlighting patent claims text under the heading ‘Patents Update’.

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...

Silhouettes of workers on scaffolding at a construction site during sunset under the heading ‘Patents Update’.

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...

Patentability vs Validity

Patentability vs. Validity: What’s the Difference in Canadian Patent Law?

When is an invention truly protected—and when can that protection be challenged? These questions lie at the heart of Canadian patent law, and a recent Ontario Superior Court decision, Zacon Limited v. Provincial Doors Inc., 2025 ONSC2954 offers a clear and practical answer.  In this post, we’ll explore the difference between patentability...

Patent Update: Due Care

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...

Knowledge Center: Strong vs Weak Trademarks

What Makes a Trademark Strong? A Practical Guide for Canadian Entrepreneurs

If you're building a brand in Canada, choosing the right trademark is one of the most important decisions you’ll make. A strong trademark doesn’t just help customers remember you—it protects your business legally and gives you the exclusive rights to grow with confidence. In this guide, we’ll walk you through five...

Trademarks Update

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...

Patent Updates

Canadian Patent Office IT Problems Remain Unresolved

The Canadian Intellectual Property Office (CIPO) is facing ongoing challenges with its new IT system. Their new system, MyCIPO Patents, was introduced to streamline the patent application process. Our firm is closely monitoring the situation to ensure our clients’ patent rights remain protected despite these delays. Understanding the Current Challenges The MyCIPO...

Patent documents on a desk showing one application branching into multiple related filings, illustrating divisional patent applications.

UNITY OF INVENTION AND DIVISIONAL APPLICATIONS IN CANADA

In the United States, a patent application may be filed based on an earlier filed “parent” application.  Such applications include divisional applications and continuation applications.  Continuation application and divisional applications have the same specification as the parent application but normally have different claims.  Continuation-in-part (CIP) applications are also available in...

Magnifying glass highlighting patent claims text under the heading ‘Patents Update’.

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...

Silhouettes of workers on scaffolding at a construction site during sunset under the heading ‘Patents Update’.

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...

Patent Update: Due Care

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...

Trademarks Update

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...

Patent Updates

Canadian Patent Office IT Problems Remain Unresolved

The Canadian Intellectual Property Office (CIPO) is facing ongoing challenges with its new IT system. Their new system, MyCIPO Patents, was introduced to streamline the patent application process. Our firm is closely monitoring the situation to ensure our clients’ patent rights remain protected despite these delays. Understanding the Current Challenges The MyCIPO...

CIPO Targets Inactive Trademarks with New Pilot Project

The Canadian Intellectual Property Office’s Trademarks Opposition Board has launched a new pilot project. This initiative aims to clean up the Register of Trademarks by removing inactive trademarks. Project Overview Starting January 2025, the Registrar will issue monthly section 45 notices on randomly selected registrations. These notices will target trademarks registered for...

IP Law Update | Image of several buildings

A New Era for Industrial Design: Buildings and Structures Now Recognized as Finished Articles

The Canadian Intellectual Property Office (CIPO) recently announced a shift in its practice regarding industrial designs applied to buildings or structures. This change promises notable implications for the field of industrial design. Previous Stance Previously, the Industrial Design Office (the Office) did not allow registration of designs applied to buildings or structures. The...

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