Marks & Clerk
Automatically compiled listing. Details may contain errors.18 lawyers · City of Toronto
One of 2,276 law firms listed in Toronto, and one of 136 handling Intellectual Property.
About Marks & Clerk
Marks & Clerk is an international intellectual property firm that traces its history to 1887, when it set up its first office in the UK. It has grown into a network of offices across the United Kingdom, continental Europe, Asia, and North America. In 2007 the firm's China practice, founded in 1994 as Lloyd Wise, merged into the Marks & Clerk network, extending its reach into East Asia.
The firm's Canadian practice dates to 1921, giving it more than a century of continuous operation in the country. It works from two offices, in Ottawa and Toronto, with about 25 lawyers and patent and trademark agents supported by more than 50 additional staff. The Toronto office, at 33 Yonge Street in the city's financial and legal district, handles patent prosecution, trademark and copyright work, and IP litigation. Its patent agents draw on technical backgrounds in electronics, computer science, artificial intelligence, chemistry, pharmaceuticals, and biotechnology, and the office also acts for clients in fashion, entertainment, and consumer goods.
Practice areas
In the community
- Several of the firm's Canadian practitioners hold committee and leadership positions with the Intellectual Property Institute of Canada, the American Intellectual Property Law Association, AIPPI, and the International Trademark Association.
- One of the firm's partners has served as Co-Chair of the Ontario Bar Association's Pro Bono Committee and as Chair of the Canadian Bar Association's Intellectual Property Section.
- A lawyer at the firm has lectured in the IPIC and McGill University summer IP courses, and firm partners mentor students and early career lawyers through programs such as OJEN mock trials.
Good to know
Wheelchair accessible
By appointmentLawyers 18
Alexis Vaughan
Amrita V. Singh
Amylee Hu-Fouye
Avery Lee
Cat Lovrics
Partner, Head of Trademarks and Copyright (Canada), Barrister and Solicitor, Trademark Agent
Evangellos Vekris
Jonathan Colombo
Canadian Managing Partner, Barrister and Solicitor, Canadian Trademark Agent
Kamleh J. Nicola
Kevin Shipley
Kimberley Frith-Delisser
Maria Wei
Nikki Davy
Paul Horbal
Partner, Head of Electrical & Computer, Lawyer and Canadian Patent Agent
Robert A. McNaughton
Shuang Ren
Walter Chan
Wilfred So
Yuelin Ren
Where to find them
33 Yonge Street, Suite 300, Toronto, Ontario M5E 1G4 · 416-595-1155
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Family LawReal Estate LawThis 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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