3 Best Intellectual Property Lawyers in Ottawa, ON

Expert-recommended Top 3 Intellectual Property Lawyers in Ottawa, ON. All of our intellectual property lawyers actually undergo a rigorous 50-Point Inspection, which includes everything from checking reviews, ratings, reputation, history, complaints, satisfaction, trust and price - all to ensure overall excellence. You deserve only the best!

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ART BRION

BRION RAFFOUL LLP
329 Churchill Avenue North,
Ottawa, ON K1Z 5B8 Directions

Since 1998

Specialty:

✓Intellectual Property (IP) Legal Services ✓Patent ✓IP Infringement Dispute Resolution ✓Trademark ✓Design and Copyright ✓Global IP Strategy ✓Negotiating and Drafting Settlement Agreements ✓IP Licensing and Procurement Strategies ✓Due Diligence on IP Purchases ✓Infringement Opinions ✓Trade Secret Strategies ✓Freedom to Operate ✓Validity Opinions ✓Customized IP Ownership Agreements ✓Software License and Service Agreements ✓End-User License Agreements ✓Material Transfer Agreements and Non-Disclosure Agreements ✓Due Diligence Reviews of Patent Portfolios ✓Invention Mining Advice for Companies ✓Opposition and Cancellation Proceedings

"Art Brion is a founding partner of Brion Raffoul LLP and helps clients, including multinational corporations, high-tech startup companies and lone inventors. He obtained his LL.B. at the University of New Brunswick. Art Brion specializes in the drafting and prosecution of patent applications worldwide. He also provides expertise in intellectual property mining and licensing strategy, especially for pre-IPO startup companies. He has been ranked as a leading patent practitioner in Canada in the IAMPATENT1000 publication. He is also a frequent speaker and participant at startup-oriented gatherings. Brion Raffoul LLP is a well-known intellectual property law firm located in Ottawa. The lawyers at Brion Raffoul LLP are known for providing practical, business-oriented legal advice that protects your valuable IP. From start-ups to universities and government agencies to both private and publicly-traded companies, they represent the intellectual property interests of their clients worldwide. They pride themselves on providing timely, effective, and practical advice at reasonable rates. They offer a free initial telephone or in-person consultation.

2026 Highlights: Brion Raffoul LLP provides a full suite of IP services, including managing patents, trademarks, and design registrations in Canada, the United States and worldwide."

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License #44721J

Contact:

(613) 521-8844

Mon-Fri: 9am - 5pm
Sat & Sun: Closed

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3+ YEARS ON TBR
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ALAIN D. BOURASSA

PERLEY-ROBERTSON, HILL & MCDOUGALL LLP
1400-340 Albert Street,
Ottawa, ON K1R 7Y6 Directions

Since 1993

Specialty:

✓Alcoholic Beverages ✓Copyrights ✓Design Registration ✓Industrial Designs ✓Integrated Circuit Topographies ✓Licensing ✓Life Sciences ✓Patents ✓Plant Breeders’ Rights ✓Trade Secrets ✓Trademarks ✓Validity and Infringement Searches and Opinions

"Alain D. Bourassa is the head of the Intellectual Property Group at Perley-Robertson, Hill & McDougall LLP and is familiar with all aspects of intellectual property law, with extensive proficiency in the international coordination of patent and trademark registration and prosecution. He has over 25 years of experience drafting and prosecuting patents and trademarks worldwide. Alain is also a registered patent and trademark agent with a Master's in E-Business Law, making him one of Canada’s experts in Internet law issues. He is a member of the Law Society of Upper Canada, the International Technology Law Association, the American Intellectual Property Law Association (AIPLA), the International Trademark Association (INTA), the Association Internationale pour la protection de la propriété industrielle (AIPPI), and the Intellectual Property Institute of Canada. He is equally qualified to practice in English or French. Alain D. Bourassa ensures his clients can capitalize on their intellectual investments by actively protecting and enforcing their patents and trademarks in Canada and internationally. The firm has over 50 lawyers and 60 administrative professionals.

2026 Highlights: Perley-Robertson, Hill & McDougall LLP has experience in due diligence, contractual and transactional issues with respect to copyright, and the support of their Business Law and Litigation Groups to provide the resources their clients need."

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License #33869R

Contact:

(613) 238-2022 (613) 566-2851

Mon-Fri: 8:30am - 5pm
Sat & Sun: Closed

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AUDREY DEMARSICO

NELLIGAN LAW 50 O’Connor Street, Suite 300,
Ottawa, ON K1P 6L2 Directions

Since 2006

Specialty:

✓Trade Secrets ✓Intellectual Property Litigation ✓Copyright Law ✓Trademarks ✓IP Strategy and Portfolio Management ✓Trademark Protection ✓Copyright Protection ✓Legal Opinions and IP Due Diligence ✓IP Commercialization and Agreements ✓Trade Secrets and Confidential Information ✓Customs and Border Enforcement ✓Cannabis Industry IP ✓Indigenous IP and Cultural Knowledge ✓Entertainment and Creative Industries ✓Public Authorities and Research Institutions ✓IP Disputes and Enforcement

"Audrey DeMarsico offers services in trade secret protection, trademark and copyright registrations, acquisitions, licensing, enforcement, and related litigation. She has directed many not-for-profit corporations through compliance with new legislation at the federal and provincial levels. Audrey has developed conflict-of-interest policies and protocols for boards of directors. She also has a broad range of experience, including corporate and commercial work, estate planning and administration, civil litigation, and regulatory advice. The lawyer also provides independent advice to special committees when boards navigate governance challenges such as potential conflicts of interest. Audrey DeMarsico is a member of the Law Society of Ontario and the Law Society of Nunavut. The team combines legal expertise with understanding and transparency to guide you through the complexities of the law. They also offer a free 20-minute consultation.

2026 Highlights: Audrey guides clients in navigating the intersection of innovation and legal compliance. This includes legal advice on technology transfer agreements and strategic counsel on protecting intellectual property for new inventions."

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License #52220C

Contact:

(613) 231-8251 (613) 238-8080

Mon-Fri: 9am - 5pm
Sat & Sun: Closed

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