James S.S. Holtom


Jamie* has always been competitive. Previously a champion race car driver, Jamie competed and won races at some of the toughest circuits around. Now, he channels that competitive instinct to benefit his clients, always striving to win. A strong believer that one can never be too prepared, Jamie knows that creative thinking drives§ success in the courtroom. While his primary focus is IP, a commercial dispute or class action also revs his engine. Colleagues praise Jamie‚Äôs ability to get to the heart of his cases . Drilling down to the main issues is a skill he developed while clerking at the Federal Court of Appeal. Since then, Jamie has represented clients in various industries in trials, applications and appeals, as well as injunction motions. .


  • Practice Areas:

  • Bar Admissions:

    • Ontario (2014)
  • Education:

    • Queen's University (2013) JD
    • Queen's University (2010) BSc (Biochemical Engineering with First Class Honours)


James S.S. Holtom

is a lawyer at Lenczner Slaght.

James' practice focuses on intellectual property and commercial litigation. James serves clients in complex patent, trade-mark and copyright disputes, administrative law matters in the pharmaceutical and communication sectors, as well as various commercial disputes including breach of contract and oppression claims. James has appeared in the Federal Court, Federal Court of Appeal and Ontario Superior Court of Justice, and has written on numerous I.P. topics including international trade agreements, pharmaceutical data protection and the Patented Medicines (Notice of Compliance) Regulations.

Before joining Lenczner Slaght, James served as law clerk to the Honourable Justice David Stratas of the Federal Court of Appeal, assisting in deliberations on cases in the areas of I.P., administrative law, tax law and civil procedure. James' law school awarded him several prizes for academic standing in the study of patent and trust law.

Today, James coaches the Harold G. Fox Intellectual Property Moot team at Queen’s University, where he also guest-lectures in patent law.

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  • Toronto Intellectual Property Group

  • Ontario Bar Association

  • Intellectual Property Institute of Canada

  • The Advocates' Society

  • Canadian Bar Association

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