Barry Sookman > 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

Information Technology; Intellectual Property; Privacy & Data Protection


Senior counsel in the Technology Law Group. Former leader of the firm’s Intellectual Property group. One of Canada’s foremost authorities in information technology, Internet, copyright and privacy law. Acts in connection with complex IT/AI//IP transactions and defense procurements and in IT/IP litigation. Has argued numerous precedent-setting cases at all levels of courts, including the Supreme Court of Canada. Adjunct professor of IP law at Osgoode. Author’s blog at


Ontario Bar, 1982.


Copyright Committee PTIC.



Author of numerous books, including the leading eight-volume treatise ‘Computer, Internet and Electronic Commerce’.

Lawyer Rankings

Canada > Intellectual property

(Hall of Fame)

Barry SookmanMcCarthy 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. Alfred Macchione is recognized for his strong experience in IP prosecution and transactions; similarly, IP strategy and prosecution head Lisa Melanson is also 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.