Osler Hoskin & Harcourt

Osler Hoskin & Harcourt is one of the highly recommended law firms in Canada for IP work. The prominent trade mark practitioner in its IP department is Donna White, who is the managing partner of its Ottawa office. White specialises in trade mark protection and portfolio management. Other notable soft IP practitioners in the department are May Cheng, Barry Fong and John Cotter. Cheng is experienced in both trade mark protection and disputes work, while Cotter specialises in soft IP disputes particularly copyright. 

Its patent practice is headed by J Bradley White, a lawyer who specialises in life sciences patent litigation. In patents, the firm is best known for representing generic pharmaceutical companies, but it is also experienced in dealing with disputes in the chemical and energy sectors. White is supported by litigators Vincent M de Grandpré and Nathaniel Lipkus and a team of associates. Geoffrey Langen and Faylene Lunn are up-and-coming practitioners to watch.

2025

“Advice is provided quickly and in a manner that makes even complicated situations seem simple."

"Fast response times."

"Great service and price."

"Knowledgeable and easy to reach when have any questions or concerns. They provide proactive suggestions to improve quality of work product and meet client goals."

"I’ve been consistently impressed with Osler's professionalism and the quality of service.”

"Team is very experienced and knowledgeable of the entertainment industry, especially in Canada."

"The firm is my go-to law firm in Canada. High quality work and great communication."

"They are my go-to firm in Canada. Outstanding service, quality advice and reasonable costs."

"They are thorough and employ great lawyers."

"Very responsive and knowledgeable."

Brad White

“A stickler for client service and ensures that his team delivers time after time.”

Matthew Diskin

“His responsiveness, attention to detail, and ability to navigate complex legal matters with clarity and precision have been incredibly valuable.”

“Brings a calm, strategic mindset to every conversation, and his follow-through has made a real difference in helping us stay on track and protected. It's been a pleasure working with someone so sharp and reliable.”