Andrew M. Shaughnessy

Toronto: 416.865.8171
Fax 416.865.7380


LLB, 1991
Queen's University
BSc (Chem. Eng., First Class Honours), 1987
Queen's University

Bar Admissions

Ontario, 1993


Andy is a partner in Torys' Litigation and Dispute Resolution Practice. His practice focuses on intellectual property litigation and dispute resolution, and Federal Court practice. Andy has represented a wide variety of clients in complex patent and trademark infringement and related litigation. He has been an advocate before the Supreme Court of Canada, the Federal Court of Canada, Federal Court of Appeal, Ontario Superior Court of Justice, Court of Appeal for Ontario, and specialized tribunals such as the Trademarks Opposition Board. Andy serves as one of the Canadian Bar Association’s Intellectual Property section representatives on the Federal Court IP Users' Committee.

Andy is a well-known speaker and author in Canada. He is a co-author of Canadian Patent Act Annotated. He is an adjunct lecturer at the University of Toronto Faculty of Law, where he oversees the school's participation in the Harold G. Fox Intellectual Property Moot. Aside from the practice of law, Andy is a member of the Applied Science Campaign Cabinet of Queen's University and a running and cycling enthusiast.

Representative Work

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Chambers & Partners’ Chambers Canada—Leading lawyer in intellectual property: litigation (2016-2019)

Best Lawyers in Canada—Leading lawyer in intellectual property law (2006-2019)

Lexpert/Thomson Reuters' Guide to the Leading U.S./Canada Cross-Border Corporate Lawyers in Canada—Most Frequently Recommended lawyer in dispute resolution (2018)

Benchmark Litigation's Litigation Star (2018)

Lexpert/American Lawyer’s Guide to the Leading 500 Lawyers in Canada—Leading lawyer in intellectual property litigation (2013-2018) and intellectual property (2018)

Chambers & Partners’ Chambers Global: World’s Leading Lawyers for Business, The Client’s Guide—Leading lawyer in intellectual property litigation (2008-2018)

Lexpert/Thomson Reuters' Canadian Legal Lexpert Directory—Leading lawyer in intellectual property litigation (2008-2018); biotechnology (2011-2018); and intellectual property (2012-2018)

Law Business Research’s Who’s Who Legal Canada—Leading lawyer in life sciences and patents (2010-2018)

Intellectual Asset Management's IAM Patent 1000: The World's Leading Patent Practitioners—Leading lawyer in litigation (2012-2018)

Law Business Research's Who's Who Legal—Life sciences (2014-2015), intellectual property (2008-2013) and patents (2010-2012)

Legal Media Group's Benchmark Canada—Local Litigation Star – Ontario (2014); Leading litigator in intellectual property (2012-2013)

Lexpert's Guide to the Leading US/Canada Cross-border Litigation Lawyers in Canada—Leading lawyer in intellectual property (2012-2013)

Legal Media Group/Euromoney’s Guide to the World’s Leading Patent Law Practitioners—Leading Canadian patent lawyer (2013)

Practical Law Company’s Which Lawyer?—Recommended Canadian lawyer in intellectual property: patent litigation (2009-2012)

Intellectual Asset Management's IAM Patent Litigation 250: The World's Leading Patent Litigators—Leading lawyer globally (2010-2011)

Practical Law Company’s Cross-Border Intellectual Property Handbook—Recommended Canadian lawyer (2007-2008)

Lexpert’s Guide to the U.S./Canada Cross-border Litigation Lawyers in Canada—One of Canada’s litigation lawyers to watch (2007)

Legal Media Group’s Guide to the World’s Leading Patent Law Practitioners—Leading lawyer in Canada (2007)

Lexpert/American Lawyer Media's Guide to the Leading 500 Lawyers in Canada—One of the 25 litigators to watch (2006)

Lexpert/Thomson Canada’s Guide to the Leading 100 Canada/U.S. Cross-Border Litigators in Canada—One of Canada’s 25 litigators to watch (2005)



Memberships and Affiliations

Andrew is on the Canadian Practice Committee of the Intellectual Property Owners Association. He is also on the member of AIPLA, the Intellectual Property Institute of Canada, the Japan Society and The Advocates’ Society. Additionally, Andrew is a member of the Intellectual Property section for both the American Bar Association and the Canadian Bar Association.