About Ledgley Law

Ledgley Law is a Toronto intellectual property firm established in 2001. Based at 724 Annette Street in the city's west end, it restricts its practice entirely to IP work: patents, trademarks, industrial designs, and copyright. Its professionals are licensed to act before the Canadian Intellectual Property Office and the United States Patent and Trademark Office, and the firm says it keeps a network of affiliated firms around the world to support clients with international filings.

The firm is led by founder Cynthia Ledgley, who has practiced law since 1987, was called to the Ontario bar in 1989, and has been a registered trademark agent since 1989 and a registered patent agent since 1990. Before turning to law, Ledgley earned a B.Sc. (Hons.) in microbiology and immunology from the University of Western Ontario in 1980, then did graduate studies in immunology at the University of Toronto from 1980 to 1983, followed by an LL.B. from the University of Toronto in 1987 and later graduate studies in law at Osgoode Law School, York University, from 1996 to 1998. That science background lines up with the firm's stated strength in biotechnology, biochemistry, and chemistry patent work.

In the community

  • Ledgley Law's founder established the Mechanical Tutorials in Toronto in 2000, teaching them annually to patent agent candidates for 8 years.
  • The firm is listed as a member business of the Baby Point Gates Business Improvement Area, which represents shops and services around Annette and Jane Streets in Toronto's west end.
  • The firm's website includes a formal land acknowledgement recognizing the Mississaugas of the Credit, the Anishnabeg, the Chippewa, the Haudenosaunee and the Wendat peoples, and noting that Toronto is covered by Treaty 13 with the Mississaugas of the Credit.

Good to know

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Where to find them

724 Annette Street, Toronto, Ontario M6S 2E2 · 416-703-4004

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

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