Sarah Darby > AA Thornton > London, England > Lawyer Profile

AA Thornton
Octagon Point
5 Cheapside
Sarah Darby photo

Work Department

Trade marks, design rights and copyright


Sarah is a partner and UK Chartered Trade Mark Attorney and European Trade
Mark and Designs Attorney. Sarah handles trade marks, designs
and copyright in the UK, EU and worldwide.

Sarah advises on all types of trade mark matters from the inception
of a brand and checking its availability to obtaining registrations,
commercialisation of rights and enforcement of rights in opposition
actions, cancellation actions and litigation.

Sarah also deals with domain name registrations, purchases and
complaints, as well as customs and counterfeit issues. Sarah
advises both domestic and international clients, in industry sectors
such as food & beverages, luxury goods, agriculture, gaming and


  • Sarah joined A.A. Thornton & Co. after graduating in December 2006
  • She became a Senior Associate in 2013
  • Sarah was promoted to Partner in September 2018


  • Chartered Institute of Trade Mark Attorneys (CITMA)


  • BA Hons English Literature, Selwyn College, Cambridge

Lawyer Rankings

London > TMT (technology, media and telecoms) > PATMA: Trade mark attorneys

Counting SMEs, individual inventors, UK-based companies and academic institutions among its key roster of clients, AA Thornton’s ‘committed and reliable team’ houses both attorneys and solicitors, who advise on the development and management of trade mark portfolios. The practice’s caseload also includes opposition proceedings before the UKIPO, as well as matters relating to ownership and licensing issues, and the registration of domain names. Praised as ‘calm, considerate, and extremely knowledgeable’, Ian Gill leads the team, which includes Sarah Darby, who ‘offers pragmatic advice’ when handling global trade mark portfolios, and ‘superb’ senior associate Louise Foster. The practice has demonstrable experience across the food and beverage, fashion, pharmaceutical, life sciences, gaming and retail sectors; key clients include Virgin, Associated British Foods and Primark, to name a few.