Guillaume Lavoie Ste-Marie

Principal at Smart & Biggar

Guillaume Lavoie Ste-Marie is a Principal in Smart & Biggar’s Montréal office. As a seasoned copyright, patent, and trademark litigator, he is trusted by clients for his practical and results-driven litigation strategies in complex IP matters. Guillaume has extensive experience in all aspects of intellectual property litigation before the Federal Court, Federal Court of Appeal, and Superior Court of Quebec.

He is adept at managing large-scale, multi-party litigation and executing complex extraordinary remedies such as Anton Piller orders, interim and interlocutory injunctions, Mareva injunctions, and contempt orders before the Federal Court in copyright and patent matters. His expertise also encompasses contentious trademark prosecution, including trademark oppositions and summary cancellation proceedings, both initially before the Trademarks Opposition Board and on appeal.

Guillaume plays a critical role in the protection and enforcement of protected geographical indications (Appellations d’Origine Controlee) in Canada. His professional excellence has earned him rankings in The Best Lawyers in Canada, The Legal 500 Canada, and World IP Review Leaders.

Guillaume is an active member of several professional organizations, including IPIC, CBA, and IPO. He holds a BCom in finance with great distinction, and a BCL/LLB, and is a registered trademark agent. He has been practicing law since being called to the Quebec bar in 2014.

Year Call to Bar: 2014 (QC)

Phone: (514) 954-3545

Email: [email protected]

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