Colleen Spring Zimmerman

Colleen Spring Zimmerman
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Colleen practises exclusively in Intellectual Property (IP) and Technology (IT) law and her clients include start-ups to multinational corporations in every industry sector.

As a registered trade-market agent, Colleen works collaboratively with her clients to help them structure complex IP transactions; maximize and protect their IP portfolios; and develop international strategies, including licensing and distribution arrangements, for revenue generation.

As the traditional concepts of intellectual property continue to evolve, clients turn to her for advice in respect of social media, domain names, CASL, advertising, contests and branding. Colleen also litigates IP disputes before the Courts.

Colleen is recognized as a leader in intellectual property law and has written extensively in this area. She is Co-chair of the firm’s Business Development Committee and is the Past-President of the Society of Sharing, a volunteer organization dedicated to serving seniors and adults with disabilities in the Toronto community.

Education & Memberships


Certified Mediator, (INTA), 2011
Called to the Ontario Bar, 1979
University of Western Ontario, LL.B., 1977
Dalhousie University, B.Sc. in Pharmacy, 1974


Canadian Marketing Association

Brand Strategy Council

Intellectual Property Institute of Canada (IPIC)
International Trademark Association (INTA)

Famous and Well-Known Marks Committee

Licensing Executives Society (LES)
National Association of Women Lawyers (NAWL)
American Bar Association

Intellectual Property Section

Ontario Bar Association
Canadian Bar Association

Awards and Recognition

Expert Guides: Women in Business Law

Trademark Law

The Best Lawyers™ in Canada

Intellectual Property Law

Who's Who Legal

Trademark Law

Professional Designations

Registered Trade-mark Agent

Speaking Engagements & Publications

Future Proof Your Brand: Trademark Law Changes

Canadian Marketing Association, March 2019

CASL Update: Privacy and Data Protection Seminar

Lexpert’s  Annual Privacy and Data Protection Seminar, November 2016 & 2018

What's Trending Now in Digital Advertising & Marketing Seminar

CASL Compliance: Upgrading Consents for CEMs before July 1, 2017 and Protecting Trademark Rights in Digital Advertising: Online Trademarks in Metatags, Hashtags, Keywords and Domain Names, February 2017