Ian Gill > AA Thornton > London, England > Lawyer Profile

AA Thornton
Octagon Point
5 Cheapside
Ian Gill photo

Work Department

Trade marks, patents, designs and copyright.


Ian Gill has been a partner since 2001.  With over 20 years in the field, Ian specialises in contentious and non-contentious issues relating to trade marks and design. Ian’s technical expertise spans the full spectrum of intellectual property law, including trade marks, registered designs and patents. The bulk of his work relates to trade mark prosecution and enforcement, including related issues such as intellectual property portfolio management and domain name dispute resolution proceedings.

Ian’s clients span a diverse range of industries, but his particular focus is in the food and beverage and fashion sectors.

Ian also leads the firm’s systems group, who are responsible for IT hardware and software, including the specialist IP software systems that support the smooth and efficient running of the firm.


Joined A.A. Thornton & Co. 1994; partner 2001. Professional qualifications include: registered trade mark attorney, European trade mark attorney, chartered patent attorney and European patent attorney.


Chartered Patent Attorneys (CIPA); Chartered Institute of Trade Mark Attorneys (CITMA); International Trade Mark Association (INTA); International federation of Intellectual Property Attorneys (FICPI); Pharmaceutical Trade Mark Group (PTMG).


Bristol University (B Eng Aeronautical Engineering); Queen Mary and Westfield College, London University (MSc IP law).

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.