Mark D. Penner

Mark D. Penner

recognized lawyers icon Recognized in Best Lawyers since 2019
Awarded Practice Areas
Intellectual Property Law
Awarded Practice Areas
Intellectual Property Law
Mark D. Penner
Mark D. Penner
Toronto, ON
Works at
Cassels Brock & Blackwell LLP

107 Best Lawyers awards

Biography

As a patent and trademark lawyer Toronto-based, Mark D. Penner’s practice focuses on all aspects of the acquisition, protection, enforcement and strategic use of a wide range of intellectual property assets in Canada and around the world.

Acting for a range of clients, from individual inventors, start-ups and other early stage companies to large multinational companies, Mark provides strategic advice in a variety of technology areas, including biotechnology, chemistry, energy, social media, insurance, communications and digital marketing.

Mark regularly speaks and writes extensively on all aspects of intellectual property rights, particularly the commercialization of IP rights for start-ups as well as commercial matters for companies with respect to IP rights in national, cross-border and multinational commercial transactions. He is frequently sought after by national and international media as a commentator on IP matters.

Works at
Cassels Brock & Blackwell LLP

107 Best Lawyers awards

Locations

Client Testimonials

Awards & Focus

Recognized in The Best Lawyers in Canada 2026 for work in:
  • Intellectual Property Law

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