Claire Breheny

Head of Trade Marks | Partner

Head of Trade Marks, UK Trade Mark Attorney

MA Cantab Education Studies with Music, JEB Qualified Trade Mark Attorney

Claire is a qualified Senior Trade Mark Attorney with 19 years of experience in private practice, including 12 years post-qualification. She was featured in the Thomson Reuter Stand Out Lawyer 2024, 2025 and 2026 lists, has been recognised as a WIPR Leader 2024, and is regularly featured in Legal 500 and WTR 1000.

Claire has been described in WTR 1000 as “creative and sharp when it comes to global strategy and knows what makes for great customer service… Responsive, organised and proactive, she works extremely hard and goes the extra mile”, and, “committed to providing client-oriented advice. She thinks outside the box to devise creative solutions, all based on a strong foundation and knowledge of the law.” In WTR 1000 2026 Claire has been described as ”as a trusted and valued adviser. She has a deep knowledge of her clients’ portfolios, current priories and strategic interests. Claire can be relied on to provide a clear legal interpretation of the matter at hand as well as a considered commercial view.”

Expertise

Academic

Memberships and organisations

Awards

Testimonials

“I have worked with Claire Breheny at Mathys for a long time. I consider her to be one of the best TM practitioners in the UK. She provides consistent, sound, and pragmatic device.”

The Legal 500

2027

“The team is led by Claire Breheny who has a great command of UK trade marks. I appreciate her prompt attention and responsiveness. In addition, Claire lends a practical guide in her approach, which is easy to translate into actionable advice.”

The Legal 500

2027

”Claire Breheny is a trusted and valued adviser. She has a deep knowledge of her clients’ portfolios, current priorities and strategic interests. Claire can be replied on to provide a clear legal interpretation of the matter at hand as well as considered commercial view.”

WTR 1000

2026