Steven Mason > McCarthy Tétrault > Toronto, Canada > Lawyer Profile

McCarthy Tétrault
66 Wellington Street West
Suite 5300, TD Bank Tower Box 48
Toronto ON M5K 1E6

Work Department

Intellectual Property: Litigation; Life Sciences: IP/Patent Litigation


Chair of the firm’s National Intellectual Property Litigation Group. Acted as lead trial and appellate counsel in a broad range of IP cases in Ontario, British Columbia, in the Federal Courts and in the Supreme Court of Canada. Also practised IP Litigation in the United States (Cal.). Adjunct Professor at Osgoode Hall Faculty of Law; teaches Intellectual Property Law.


Ontario Bar, 1994; State Bar of California, 2001.


Fellow, Litigation Counsel of America.


Co-author of ‘Intellectual Property Law in Canada: Cases and Commentary’, Carswell, 2013 (2nd Ed.) and ‘Copyright: Cases and Commentary on the Canadian and International Law’, Carswell, 2013 (2nd Ed.).

Lawyer Rankings

Canada > Intellectual property

(Leading individuals)

Steven MasonMcCarthy Tétrault

McCarthy Tétrault operates across all key pillars of IP law, with strong offerings in prosecution, litigation, and multi-jurisdictional matters. Among the names to note in Toronto, senior counsel Barry Sookman stands as an authority in copyright and IP-related issues. IP strategy and prosecution head Lisa Melanson remains a key contact in this sphere. IP litigation head Steven Mason is highly regarded for his record in cutting-edge IP disputes, while David Tait focuses on patent litigation in the pharmaceutical and life sciences arenas. Other key names in Toronto include Fiona Legere and associate Kendra Levasseur. Vancouver’s Vincent Yip leads the firm’s Western Canadian IP practice. Since publication, Alfred Macchione has departed the firm.