Frank Tosto


[email protected]

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Frank focuses his practice primarily on intellectual property litigation and directors’ and officers’ liability.

Frank litigates patent, trade secret, industrial design, trademark, and copyright matters, including several “Bet-the-Company” actions. He also has extensive experience in public procurement including arbitrations under the New West Partnership Trade Agreement in addition to judicial reviews of complex public procurements.

Frank has appeared at all levels of court throughout Canada — including acting as counsel in numerous motions and trials in the Ontario Superior Court of Justice, Alberta Court of Queen's Bench, and Federal Court of Canada.

Frank fournit des services juridiques par l’intermédiaire d’une société professionnelle.


  • Represented both plaintiffs and defendants in "Bet-the-Company" patent and trade secret litigation concerning well-servicing equipment.
  • Obtained an Order striking the Statement of Claim in a patent infringement computer software case concerning drones which service the defence industry.
  • Represented corporation in a trademark dispute concerning a national advertising campaign.
  • Represented U.S. Corporation in trademark and passing-off dispute permitting company to enter the Canadian marketplace.
  • Obtained copyright protection for marine seismic data.
  • Litigated case which determined the test for authorship of computer software programs in Canada.
  • Obtained an ex parte interlocutory injunction requiring any and all persons or other legal entities appearing to be in control of client’s domain name, website and email hosting account and a company’s social media accounts (including but not limited to, its Twitter and LinkedIn accounts) to allow the client to change the username and passwords without the rogue’s authorization.
  • Obtained an ex parte injunction shutting down a foreign website.
  • Conducted an 18-month trial concerning defective cement and associated insurance coverage issues.
  • Represented insurers in significant directors' matter including third-party liability and insurance coverage issues.
  • Represented private school in high-profile Fatality Inquiries Act matter.
  • Represented radiological technician in medical malpractice matter.
  • Represented defendants in litigation concerning the medication Ephedrine.
  • Represented both plaintiffs and defendants in high-profile defamation law suits.
  • Represented defendant concerning the electrical remediation of a high-rise building.
  • Conducted several procurement matters including an arbitration under the New West Partnership Trade Agreement.

Beyond Our Walls

Professional Involvement

  • Member, Law Society of Ontario
  • Member, Law Society of Alberta
  • Member, Canadian Bar Association
  • Associate, Intellectual Property Institute of Canada (IPIC)

Awards & Recognitions

  • Recognized in the 2022 (and since 2018) edition of The Best Lawyers in Canada® (Intellectual Property Law).

Bar Admission & Education

  • Ontario, 1997
  • Alberta, 2004
  • LLB, Université de Windsor, 1993
  • JD, University of Detroit, 1993
  • Intellectual Property Law Institute, Université de Windsor, 1993