About Patrick Roszell

Patrick Roszell is a principal at Smart & Biggar, based in Toronto, who helps businesses build patent protection around their inventions. That work ranges from patent prosecution and strategy to opinions and the contracts that govern IP, software and data. Clients run from tech start-ups to large multinationals.

Before law, Roszell worked as an engineer in the automotive and oil and gas industries. Roszell holds a mechanical engineering degree from Queen's and a J.D. from the University of Toronto (2009), and was called to the Ontario bar in 2010. Registration as a trademark agent followed in 2013 and as a patent agent in 2014.

Roszell's patent work spans aerospace, mining, medical devices, power generation, manufacturing, and computer hardware and software. Artificial intelligence has become a recurring theme too. Roszell's work touches both the technical and contractual sides of AI, and in a 2025 Lexpert piece on health privacy, Roszell argued that lawyers with a technical bent can help organizations connect the dots between technology and privacy.

Between 2015 and 2017, Roszell taught an introductory IP law course in the University of Toronto's computer science faculty. Best Lawyers has recognized the patent lawyer for Intellectual Property Law since 2025.

Practice areas

Intellectual Property

Patents, opinions and IP agreements

Roszell drafts and prosecutes patent applications and shapes patent strategy for inventions in aerospace, mining, medical devices, power generation, manufacturing and computing. The work also covers patentability, infringement and freedom to operate opinions, plus preparing and advising on IP, software and data agreements.

Education & credentials

  • J.D., University of Toronto (2009)
  • B.Sc. (Mechanical Engineering), Queen's University (2006)
  • Called to the Ontario Bar (2010)
  • Registered Trademark Agent (2013)
  • Registered Patent Agent (2014)

Awards & recognition

Publications & speaking

  • Thinking of using AI in a medical context? Key issues to consider, Electronic Healthcare Law Review (co-authored with Graham Hood and Alice Tseng) (2023)
  • Examining Canada's flexible and cost-effective approach to patent prosecution, Managing Intellectual Property (co-authored with Brigide Mattar and Lei Liu) (2020)
  • Protecting and leveraging AI assets and innovations, Lexology webinar (2024)
  • Managing IP and Compliance Risks in a Digital World, Association of Corporate Counsel (ACC) Ontario webinar (2022)
  • CSC2702: Introduction to Intellectual Property Law, University of Toronto Faculty of Computer Science (lecturer, 2015 to 2017) (2017)

Memberships & affiliations

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This listing was generated by AI from public sources in October 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on their firm’s website. Confirm Patrick Roszell’s licence and standing in the Law Society of Ontario directory ↗

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