Sheldon Hamilton > Smart & Biggar > Toronto, Canada > Lawyer Profile

Smart & Biggar
York Street

Work Department

Pharmaceutical Litigation




Sheldon Hamilton is a Principal in Smart & Biggar’s Toronto office and one of Canada’s leading patent litigation lawyers. For more than 25 years, Sheldon has acted as counsel for many of the world’s most innovative companies, successfully protecting their commercially valuable IP assets. He is a partner in Smart & Biggar’s Toronto office and leads the firm’s Litigation Practice Group.

Sheldon has extensive trial experience focusing on issues of patent infringement and validity and damage quantification. He’s praised by clients as a “pharma whiz” for his expertise in pharmaceutical litigation, appearing as both trial and appellate counsel, including in proceedings under the Patented Medicines (Notice of Compliance) Regulations.

Sheldon has been featured as a leading litigator in Benchmark Canada, The Best Lawyers in Canada, Chambers Global,  Chambers Canada, Euromoney LMG Expert Guides: Life Sciences and Patents, LMG Life Sciences, MIP IP Stars: Patents, WIPR Leaders, The Legal 500 Canada, Who’s Who Legal for Canada, IP, Patents, and Life Sciences, IAM Patent Litigation 250, IAM Life Sciences 250, IAM Patent 1000, Lexpert Guide to US/Canada Cross-Border Lawyers in Canada, Lexpert’s Special Editions on Litigation, Health Sciences, and Technology, and The Canadian Legal Lexpert Directory for IP, IP Litigation, and Biotechnology. At the end of 2020, he was awarded the LMG Life Sciences ‘Canadian Patent Litigator of the Year’ award. He also writes and speaks on intellectual property issues and is actively involved with professional organizations. He is a Fellow of IPIC and a member of AIPPI. BASc (Chemical Engineering); LLB (Toronto). Registered Patent and Trademark Agent.


  • Fellow, Intellectual Property Institute of Canada; former member of the Litigation and Forums & Seminars Committees
  • Member, International Association for the Protection of Intellectual Property (AIPPI); member of Amicus Brief Committee (Q. 221)
  • Member and Former Director, The Advocates’ Society; Former Vice Chair, Finance and Audit Committee


Ontario Bar, 1992
Registered Patent Agent, 1996
Registered Trademark Agent, 1995
University of Toronto, LL.B., 1990
University of Toronto, B.A.Sc. (Chemical Engineering), 1987

Lawyer Rankings

Canada > Intellectual property

The leading intellectual property boutique in Canada, Smart & Biggar focuses exclusively on IP law from its five offices across the country. The team’s generous national footprint was further boosted in September 2023 following its combination with fellow Canadian IP boutique, Ridout & Maybee, which added an additional 30 lawyers to the group. It also plugs into a significant international platform through its recent membership of the IPH Limited Group, which brings together a network of six firms across nine jurisdictions. In Toronto, Mark Evans is a go-to specialist for contentious and non-contentious trademark matters, while IP litigator Mark Biernacki contributes strong experience in an array of patents, trademarks, copyrights and industrial designs. The Toronto team also includes IP disputes expert Sheldon Hamilton; Yoon Kang, who specializes in life sciences patent litigation and prosecution; life sciences expert Nancy Pei; managing director Matthew ZischkaGraham Hood, who was appointed trademarks practice group leader in August 2023, and Urszula Wojtyra. In Ottawa, key figures include Steven Garland, a 30-year veteran in IP litigation; life sciences patents and chemicals/bio practice group leader Daphne Lainson, who was also appointed in August 2023; Elliott Simcoe, who draws on over two decades of experience in electrical and computer-related matters; and Kohji Suzuki, who utilizes a mastery of strategic IP enforcement. Montreal-based litigator François Guay is also highly regarded. Also in August 2023, Jean-Sébastien Dupont in Montreal was promoted to IP litigation practice group leader and Jonas Gifford was appointed patents engineering and ICT (EICT) head.