D. Doak Horne, PEng

Partner at Gowling WLG

Doak Horne LLB, PEng is a distinguished partner in Gowling WLG’s IP Group located in the Calgary office. With a specialization in intellectual property litigation, Doak excels in patent prosecution before both the Canadian Intellectual Property Office and the USPTO. His extensive experience includes serving as lead counsel in numerous high-profile cases involving patent infringement and impeachment, trademark infringement and expungement, opposition cases, copyright infringement, trade secret litigation, as well as passing off actions. These appearances span all levels of Federal and Provincial Courts, notably marking success as a defendant in Betser v. PetroChina Canada Ltd. 2021 FC 85.

Doak’s expertise extends to the preparation, filing, and prosecution of patent, trademark, and industrial design applications for clients in both Canada and the US. He offers authoritative opinions on clearance-to-use/freedom-to-operate issues, patent validity matters, licensing issues, and related contractual agreements.

Before embarking on his legal career, Doak honed his technical expertise as a mechanical engineer focusing on jet engine design. His dedication to engineering excellence led to his professional engineer designation in both Ontario and Alberta. Doak’s legal prowess has been consistently recognized in The Canadian Legal Lexpert Directory and The Best Lawyers, earning the prestigious title of Best Lawyers 2014 Intellectual Property Law “Lawyer of the Year” for Western Canada.

Year of Call to the Bar: 1986 (ON); 1998 (AB)

Phone: (403) 298-1994

Fax: (403) 263-9193

Email: [email protected]

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