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Our team of intellectual property litigators has experience in managing, resolving, and litigating disputes over all types of intellectual property, including patents, trademarks, industrial designs, copyright, and confidential information. Our lawyers appear in the Ontario and Federal Courts at all levels as well as before intellectual property administrative tribunals.

Our clients’ business objectives drive our approach to the dispute resolution process from start to finish. From negotiating pragmatic solutions to small disputes to developing a strategy to resolve major cases, each step in the process is informed by our clients’ objectives to ensure the most cost-effective approach at all times.

We act for parties ranging from owner-operated businesses and start-ups to international companies. Our team is experienced in enforcing our clients’ intellectual property rights as well as defending them from wrongful claims of infringement by others.

Intellectual Property Litigation and Dispute Resolution Services

Our Intellectual Property Litigation and Dispute Resolution practice group provides the following services:

  • patent infringement litigation;
  • trademark infringement and passing off litigation;
  • trademark expungement litigation;
  • trademark oppositions and section 45 proceedings;
  • industrial design infringement litigation;
  • copyright infringement litigation;
  • misuse of confidential information litigation;
  • intellectual property licensing disputes and litigation; and
  • alternative dispute resolution.

Lawyers Across Our Firm

With over 80 lawyers who focus on diverse areas of the law, we can help you. Start here.

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I appreciate Andrea for her understanding of the system and law. Andrea [Cooley] has been excellent to work with. - J.M.

Thank you Madison [Goodacre]! You've all done such a great job with my file. I appreciate you and everyone that has helped so much. – L.O.

I had a great experience with John Morrissey and his team at Siskinds. I was in a same sex common law relationship and required his help with a dependent support claim. John made my first time experience dealing with a lawyer an easy one. He was very knowledgeable and he and his law clerk Adam were always available to answer any questions or concerns I may have. I would highly recommend John and his entire team at Siskinds. - R.S.