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Sarah Darby


A.A. Thornton & Co

Sarah Darby is a Partner and Registered Trade Mark Attorney handling trade marks, designs, copyright and domain names in the UK, EU and worldwide. She 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.


  • Copyright
  • Design Rights
  • Trade Mark
  • Anti-Counterfeiting

Core Responsibilities

  • Provides advice on all aspects of searching, filing, prosecution and maintenance of trade marks all around the world
  • Advises on infringement and deals with opposition, revocation and invalidity matters at the UKIPO and the EUIPO
  • Deals with domain name registrations and complaints, as well as customs and counterfeit issues
  • Advises on portfolio creation, management and maintenance strategies from domestic to global based clients
  • Sarah has completed the ‘train the trainers’ course for the new trade mark exam system and tutors on the advanced Trade Mark course run by Nottingham University
  • She also advises at the UKIPO evening clinics for small businesses


  • 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


  • Agricultural
  • Retail


  • BA Hons English Literature, Selwyn College, Cambridge
  • Certificate in Intellectual Property, Queen Mary’s College, University of London
  • Qualified as a UK Chartered Trade Mark attorney in 2010
  • European Trade Mark and designs attorney

Professional Memberships

  • Chartered Institute of Trade Mark Attorneys (CITMA)

Related News

Partner promotions at AA Thornton

The partners of AA Thornton are very pleased to announce that Alex Bone, Sarah Darby, Nikesh Patel, Dr Marianne Privett and Nick South have become Partners of the firm as from September 2018. All are extremely experienced attorneys, and valued members of their patent and trade marks teams. Alex is a patent attorney in our… Read more »

A.A. Thornton & Co. ranked with ‘Leading Firm’ status in the Legal 500 2017

The Legal 500 2017 edition has now been published and we are delighted that the firm has once again been ranked as a leading firm for both patents and trade marks, and that our level of service was recognised as “outstanding”. The editorial sections for each of our entries in the directory are reproduced below:… Read more »

Related Events

  • In-cosmetics Formulations Summit – London 2018

    Our Cosmetics and Personal Care team returns to the in-cosmetics Formulations Summit – London 2018 Members of our Cosmetics and Personal Care team returned to the in-cosmetics Formulations Summit in London on 24 & 25 October 2018. The team in attendance included: Julie Barrett-Major, who spoke at both last year’s London Summit as well as this… Read more »

  • 140th Annual Meeting – International Trade Mark Association

    Partners of the firm and Registered Trade Mark Attorneys Ian Gill and Vanessa Lawrence along with Senior Associate, Sarah Darby, will represent the firm at the INTA 140th Annual Meeting, at the Washington State Convention Center in Seattle from 19 – 23 May 2018. With the increasing importance of brands to consumers, companies and the global economy, the… Read more »

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