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Jason Markwell Toronto Lawyer

Jason Markwell *

Partner Fasken
Provides clients with strategic advice and strong representation before the Court.
Jurisdiction Ontario, 1999
Language(s) English
Office(s) Toronto
*practising through a professional corporation


Jason Markwell is a leading intellectual property litigator in Canada.  He represents domestic and multinational corporations in a wide-range of industries, including life sciences, technology, financial services, manufacturing, mining and energy. He is well-known for his work on behalf of innovative pharmaceutical and biotechnology companies in patent infringement and regulatory disputes. He also provides advice in regard to the protection and enforcement of trade marks, copyright and trade secrets.

Jason has been recognized as a leading intellectual property lawyer by Chambers & Partners, IAM Patent 1000, The Best Lawyers Canada, Who’s Who Legal, IP Stars, Martindale Hubbell, Benchmark Litigation (IP Litigator of the Year, 2017), Managing Intellectual Property (Outstanding IP Practitioner - Canada, 2019), and LMG Life Sciences (Lawyer of the Year, 2018, Patent Litigation). Jason is active in various intellectual property organizations, including the Intellectual Property Institute of Canada (IPIC), the International Association for the Protection of Intellectual Property (AIPPI), and the Intellectual Property Owners Association (IPO). Jason is a Fellow of the Litigation Counsel of America and is a member of the Advocates’ Society, the Canadian Bar Association (CBA), and the American Bar Association (ABA). Jason has appeared as counsel before the Supreme Court of Canada, the Federal Court of Appeal, the Federal Court, and the Ontario Superior Court of Justice in a number of high-stakes and precedent-setting decisions.


Client Work

Date Client

Career & Education


  • LLB Osgoode Hall Law School at York University
  • BSc (Hons) Queen's University

Memberships & Affiliations

  • Law Society of Upper Canada
  • The Advocates’ Society
  • Intellectual Property Institute of Canada, Board of Directors (2021-2023)
  • International Association for the Protection of Intellectual Property (AIPPI), Standing Committee on Biotechnology (2022-2025)
  • AIPPI Canada, Litigation and Patents Committees
  • Litigation Counsel of America, Fellow


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