About Nadine D'Aguiar Professional Corporation

Nadine D'Aguiar Professional Corporation is a solo intellectual property practice in Ontario, founded in 2011 by Nadine D'Aguiar, a lawyer, trademark agent, and patent agent. The firm describes itself as a "virtual" IP law practice, meaning it was built without a traditional bricks-and-mortar office; the model keeps overhead low and lets the practice work with clients wherever they are. D'Aguiar holds an LLB and a Bachelor of Science in Chemical Engineering, both from Queen's University, was called to the Ontario bar in 1997, and later qualified as a Canadian trademark agent in 2001 and a Canadian patent agent in 2005.

Before starting the firm, D'Aguiar worked in the intellectual property departments of several large Canadian law firms, and the practice now draws on more than 25 years combining private practice and in house experience. The work centers on trademark prosecution and portfolio strategy (the firm has handled more than 500 trademark applications and official mark requests since it opened) alongside technology licensing and health law contracts for hospitals and research institutes negotiating clinical study, collaboration, and data transfer agreements. D'Aguiar belongs to the International Trademark Association and the Licensing Executive Society, is an associate member of the Intellectual Property Institute of Canada, and previously served as chair of the Toronto Intellectual Property Group.

Milestones & recognition

  • Nadine D'Aguiar was called to the Ontario bar in 1997, then registered as a Canadian trademark agent in 2001 and a Canadian patent agent in 2005.
  • The firm has handled more than 500 trademark applications and official mark requests since it opened in 2011.
  • D'Aguiar previously served as chair of the Toronto Intellectual Property Group (TIPG).
  • The firm was founded in 2011 as a "virtual" intellectual property practice, built from the start without a traditional office.

Good to know

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Frequently asked questions

Does Nadine D'Aguiar Professional Corporation handle trademark registrations?
Yes. The firm handles trademark prosecution from searches through to portfolio strategy, and has handled more than 500 trademark applications and official mark requests since it opened. It also represents clients in trademark opposition and expungement proceedings before the Canadian Trademarks Office, and works with a network of foreign associates on international trademark portfolios.
Can the firm help negotiate a technology licensing agreement?
Yes. The firm drafts and negotiates license, commercialization, and consulting agreements, along with software access, software license, and software as a service agreements, and often works with technology transfer managers at academic healthcare centres.
Does the firm work with hospitals and research institutes on health law contracts?
Yes. A significant part of the practice supports academic hospitals, research institutes, and other healthcare organizations with clinical study agreements, collaboration agreements, research funding and clinical research organization (CRO) agreements, and material or data transfer agreements, addressing the intellectual property, privacy, and regulatory issues that come with clinical and non-clinical research.
Does the firm have a physical office I can visit?
No. It began in 2011 as a "virtual" intellectual property law firm, built without a traditional bricks-and-mortar office, so the practice works with clients wherever they are rather than out of a storefront location.
What does trademark work with the firm cost?
The firm's schedule of fees for trademark work is available on request; it is not published on the site.
What are Nadine D'Aguiar's professional credentials?
D'Aguiar was called to the Ontario bar in 1997 and is registered as both a Canadian trademark agent (since 2001) and a Canadian patent agent (since 2005). D'Aguiar belongs to the International Trademark Association and the Licensing Executive Society, and is an associate member of the Intellectual Property Institute of Canada.

Where to find them

357 Bay St., Toronto, ON M5H 4A6

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Listing compiled from the firm’s public website in August 2026. Verify licence status in the Law Society of Ontario directory ↗