We are Canadian trademark agents and lawyers and we can assist you with: Canadian trademark applications, trademark oppositions, trademark cancellations and trademark litigation.

Answers to many general trademark questions are available by browsing through this website or by using the Search feature provided above.

We operate under the firm name of Warren Sinclair LLP and are based out of Central Alberta, Canada. Strategically located between our province’s two major centres, Calgary & Edmonton, including two international airports, our law firm is easily accessible to a market area population of 2.4 million. In addition, we are Canadian agent-of-record for clients across the globe, including businesses and law firms in Europe, South America, Asia, Australia, the Middle East and Africa.

We’ve registered hundreds of trademarks for our clients over the years and we provide representation in Trade-mark Opposition and Trade-mark Cancellation cases. If you have a trademark infringement matter, we also provide assistance in trademark litigation matters, including at the Federal Court of Canada.

We are members of INTA (International Trademark Association) and IPIC (Intellectual Property Institute of Canada). This allows us to stay updated on the latest developments in trademark law and to network with trademark practitioners world-wide.

For answers to questions on a specific matter, please use the Contact Form provided for below, or just email us We look forward to working with you.


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