Eileen McMahon > Torys > Toronto, Canada > Lawyer Profile

Torys Offices

Torys
79 WELLINGTON STREET WEST, SUITE 3000
BOX 270, TD CENTRE
TORONTO, ONTARIO
Canada
Visit website 416 865 0040 416 865 7380

Eileen McMahon

Eileen McMahon photo
416.865.7676 [email protected] View profile

Work Department

Intellectual Property

Position

Eileen’s market-leading experience, practical advice and industry insight in intellectual property and regulatory law make her a go-to advisor for clients in Canada and the United States.

Chair of Torys’ Intellectual Property and Food and Drug Regulatory practices, Eileen is one of a handful of Canadian lawyers who advise on regulatory clearance and intellectual property protection of products. Across sectors—including life sciences, agribusiness, regenerative medicine and stem cells, cannabis and more—Eileen helps clients identify IP and regulatory assets, obtain and maintain market exclusivity, exploit IP assets and enforce their IP rights.

Eileen is a registered patent and trademark agent in the United States and Canada and is adroit at navigating the issues at play in cross-border matters. She is also a Certified Licensing Professional of the Licensing Executive Society (LES) (2011-2014), United States and Canada. This certification is issued only to persons who have met the requirements for licensing professionals, established by CLP, Inc., under the guidance of the LES. Fewer than 1% of all attorneys have this certification, making Eileen a specialized resource for clients.

Career

Ontario Bar, 1987

Memberships

Eileen is a co-leader of a healthcare licensing course accredited by the Canadian Healthcare Licensing Association and endorsed by the Toronto Biotechnology Initiative on licensing and strategic alliances in the healthcare industry.

As one of Canada’s Top 100 Most Powerful Women (Women’s Executive Network), Eileen participates in the Wisdom II Mentoring Program, which matches Canada’s Top 100 award winners with young women from across Canada for mentoring.

Lawyer Rankings

Canada > Cannabis

(Leading partners)

Eileen McMahon – Torys

Lawyers at Torys ‘take time to understand the commercial objectives’, according to clients. A strong performer in the medical cannabis field, the team is well versed in regulatory, IP and commercial work, while it additionally leverages its New York office to provide significant cross-border firepower. Life sciences expert Eileen McMahon chairs the IP, agribusiness and food and drug practices and is sought after for her mastery of regulatory issues. Teresa Reguly also specializes in life sciences regulation and IP, with a focus on cannabis, food and controlled drug products. Counsel Yolande Dufresne and senior associate Melanie Sharman Rowand provide support.

Canada > Intellectual property

(Hall of Fame)

Eileen McMahon – Torys

IP lawyers at Torys stand out for being ‘very smart in the legal theory but also very practical’. The Toronto-based team strikes a balance between IP litigation and advisory work, with its expertise in the latter area considered particularly formidable. Historically recognized for its capability in transactional support matters, the team also excels in patent and trademark filing, prosecution and strategy; notably, it filed 780 patent and trademark applications during 2023/24. IP chair Eileen McMahon contributes thirty years of experience in IP law, with a focus on patent work. Other non-contentious specialists include Edward Fan, who advises on the acquisition, enforcement and exploitation of IP; Teresa Reguly, who has a focus on life sciences clients; and Michelle Nelles, who specializes in trademark law and branding. Andrew Shaughnessy heads the IP litigation area and recently paired up with Andrew Bernstein — who maintains a broad dispute resolution practice — to represent Sanofi-Aventis Canada in a complex patent case. Nicole Mantini is also noted for litigation.

Lawyer Rankings

Top Tier Firm Rankings

Firm Rankings