25 For 25: IP Milestones From The Last Quarter Century

As 2025 draws to a close, we present a curated set of 25 turning points in Canadian intellectual property law from 2001–2025. Each entry touches on a key Canadian IP development and distills why it matters. These decisions, reforms, and treaty-driven changes moved the dial and continue to shape how businesses build IP portfolios, negotiate deals, and win disputes.

Top 25

1. Apotex Inc v Wellcome Foundation Ltd (2002, SCC) – Sound Prediction Clarified
Clearly articulated the sound prediction doctrine for utility. Outlined the need for a factual basis, sound line of reasoning, and disclosure. Furthered patent and pharma early‑stage inventions and provided guidance for litigating such inventions.