James H. Buchan Firm Managing Partner Clients

Speaks:  English, French

Primary phone: +1 416-862-4426

Fax: +1 416-863-3426

E-Mail: james.buchan@gowlingwlg.com

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Primary office:  Toronto

James H. Buchan

James H. Buchan is firm managing partner – clients for Gowling WLG in Canada. In this role, he is responsible for external matters related to the firm's client relationships, as well as the key sectors and regions in which the firm offers its services.

In addition to his expertise in the areas of intellectual property advisory and enforcement work, James is also a past member of the firm's Board of Trustees, as well as a former leader of the firm's Intellectual Property Litigation Group and a former co-leader of its Trademarks Group.

As a barrister and solicitor, James' expertise in the IP field is broad-based and extensive, covering a wide range of IP-related contentious and non-contentious matters, including patent, trademark and copyright litigation. He has appeared as counsel of record in more than 25 reported decisions of the Federal Court, Federal Court of Appeal and Supreme Court of Canada, and has been counsel in over 750 trademark opposition and expungement proceedings before the Canadian Intellectual Property Office (CIPO).

Year after year, James is recognized by various legal publications for his in-depth expertise and dedication to client service excellence. These publications include The Best Lawyers in Canada, World Trademark Review and the Canadian Legal Lexpert Directory.

He remains active in numerous national and international legal committees and industry groups, including the Intellectual Property Institute of Canada (IPIC), the American Bar Association and the Defence Research Institute.


  • American Bar Association
  • Defense Research Institute
  • Intellectual Property Institute of Canada (IPIC)


  • Co-author of "Managing an Intellectual Property Portfolio" – chapter 19 of American Bar Association's Intellectual Property Deskbook for the Business Lawyer, 4th Edition