Ledgley Law
1 lawyer · Established 2001 · City of Toronto
One of 2,345 law firms listed in Toronto, and one of 195 handling Intellectual Property.
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.
Practice areas
Milestones & recognition
- Ledgley Law was established in 2001.
- Cynthia Ledgley was called to the Ontario bar in 1989 and has been a registered trademark agent since 1989 and a registered patent agent since 1990.
- The firm's founder is a Fellow of the Intellectual Property Institute of Canada (IPIC) and a member of the American Intellectual Property Law Association (AIPLA).
- The founder is past chair of IPIC's Biotechnology Legislation Committee and served more than 10 years as a representative on the Joint Liaison Committee Patents between IPIC and CIPO.
- The founder has received an IPIC Special Recognition Award for contributions to the organization.
- The founder has published articles in the Canadian Intellectual Property Review and co-authored three articles in the Journal of Immunology on the regulation of human antibody production.
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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Who handles what
The neighbourhood
Ledgley Law's office on Annette Street sits inside the Baby Point Gates Business Improvement Area, formed in 2010 to represent the shops and services around Annette and Jane Streets, just north of Bloor West Village. The BIA takes its name from the stone gates that mark the entrance to the Baby Point neighbourhood at Jane Street and Baby Point Road, one of Toronto's older planned communities, where most homes date to the 1920s and 1930s along the Humber River ravine. It's a quiet, mostly residential corner of the city's west end, a low key setting for a firm whose actual client work runs well past the neighbourhood, into US and international patent and trademark filings.
Frequently asked questions
- Does Ledgley Law handle both patents and trademarks?
- Yes. The firm's practice covers patents, trademarks, industrial designs, and copyright, and its professionals are licensed to act before the Canadian Intellectual Property Office and the United States Patent and Trademark Office.
- Can Ledgley Law help with a biotechnology or pharmaceutical patent?
- Yes, that's one of the firm's stated strengths. Ledgley Law describes particular experience in biotechnology, biochemistry, and chemistry patent matters, and the firm's founder holds an undergraduate science degree in microbiology and immunology on top of a law degree.
- Does the firm file patent applications in the United States as well as Canada?
- Yes. Ledgley Law's professionals are licensed to represent Canadian applicants directly before the US Patent and Trademark Office, in addition to the Canadian Intellectual Property Office.
- Can Ledgley Law run a freedom to operate search before I launch a product?
- Its patent services list validity and infringement analysis, searches, and freedom to operate assessments alongside drafting and prosecution work.
- I received a cease and desist letter about my trademark. Can Ledgley Law help?
- Trademark services listed on the firm's site include preparing and responding to cease and desist matters, as well as opposition and infringement opinions.
- How long has Ledgley Law been practicing intellectual property law?
- The firm was established in 2001 and says it represents over 30 years of experience in intellectual property matters.
Where to find them
724 Annette Street, Toronto, Ontario M6S 2E2 · 416-703-4004
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Wills, Estates & TrustsListing compiled from the firm’s public website in August 2026. Verify licence status in the Law Society of Ontario directory ↗