Lawyer Profile

Steven Tanner

Toronto, Ontario

Steven Tanner

Overview

Under the agreement of this take-private transaction worth C$9 billion, Boralex will continue to operate as an independent private company following closing.

Our Outlook Series 2026 provides forward‑looking analysis of the most important legal, regulatory, and market developments affecting Canadian organizations.

Steven is a partner in our Intellectual Property Litigation Group as well as the National Leader of the firm’s Inclusion Now program supporting mental health and accessibility. With a focus on patent litigation, Steven represents clients in a broad range of sectors with a particular emphasis on the oil & gas, telecommunications and pharmaceutical sectors.

As a leader of McCarthy Tetrault’s national patent litigation group, in 2024 and 2025 he helped the group achieve Chambers Band 1 rankings both nationally and globally. In addition to these awards, the group is ranked as Tier 1 in patent disputes by Managing IP and gold ranked in IAM Patent 1000. Steven’s leadership and achievements have earned him personal rankings by Managing IP, IAM Patent 1000 and Chambers.

Steven appears frequently in the Federal Court and Federal Court of Appeal, primarily in patent disputes. A selection of Steven’s recent patent litigation experience is summarized below by industry.

Practice Areas

  • Civil Litigation
  • Intellectual Property

Bar Information

Called to the bar: 2006 (ON)