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Dr Marianne Privett


A.A. Thornton & Co

Dr Marianne Privett is a Partner and UK Chartered and European Patent Attorney in the Chemistry, Biotechnology and Pharmaceuticals patent department. Marianne has experience in a variety of fields including catalysis, pharmaceuticals, medical devices, laboratory equipment and packaging.


  • Patents

Core Responsibilities

  • Drafting patent applications
  • Prosecuting patent applications in numerous countries
  • Providing advice on patentability
  • Providing advice on freedom to operate
  • Managing patent portfolios
  • Oppositions and Appeals at the EPO


  • She began her patent career in 2003 at Johnson Matthey, a large speciality chemicals company
  • She began her career in private practice in 2007
  • She joined A.A. Thornton & Co. in 2010
  • She joined the EQE Examination Committee for Paper C in 2014
  • She was promoted to Senior Associate in July 2017
  • Marianne was promoted to Partner in September 2018


  • Agriculture
  • Automotive & Aerospace
  • Medical Devices
  • Pharmaceuticals


  • MChem and PhD Materials Chemistry, University of Southampton
  • Gained the Queen Mary Certificate in 2004
  • Qualified as a UK chartered patent attorney in 2010
  • Qualified as a European patent attorney in 2010

Professional Memberships

  • Fellow of the Chartered Institute of Patent Attorneys (CIPA)
  • Member of the European Patent Institute (EPI)


  • French

Related News

IP Inclusive Week at AA Thornton

AA Thornton celebrates IP Inclusive Week AA Thornton took part in the celebration of IP Inclusive Week, to showcase the importance of diversity and inclusion in the IP professions. At the start of the week, IP Inclusive launched a pack for running a work experience day, making it easy for firms to invite students to… Read more »

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 »

World Intellectual Property Day 2018

Each year on the 26th April, we celebrate World Intellectual Property Day, to remind ourselves how intellectual property rights (patents, trademarks, industrial designs, copyright) encourage innovation and creativity. This year’s World Intellectual Property Day campaign celebrates the brilliance, ingenuity, curiosity and courage of the women who are driving change in our world and shaping our… 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 »

  • Motorsport Industry Association Summer Reception

    Motorsport Industry Association Summer Reception Attorneys Marianne Privett, Nick South, Nidhi Mukhuty and David Blair from the Automotive & Aerospace team attended the Motorsport Industry Association (MIA) summer reception at the House of Lords. The prestigious event hosted 200 delegates of influence in the motorsport and automotive sectors, including MPs and Lords, who witnessed the… Read more »

  • ABHI Parliamentary Reception

    Attorneys Marianne Privett and Chris Burnett from our Medical Devices team attended the inaugural Association of British Healthcare Industries (ABHI) parliamentary reception at Westminster last night. Joined by 170 delegates, including MPs and Lords, ABHI CEO Peter Ellingworth and Health Select Committee member Maggie Throup MP delivered speeches praising the significant contribution made to the… Read more »

Related Publications

  • Mighty MasSpec pen

    An interdisciplinary team of researchers based in Austin, Texas have developed a handheld device that accurately analyses tissue samples in vivo enabling real-time cancer diagnosis during surgery. When treating cancer, surgeons often remove the whole tumour with a margin of healthy tissue. If the margin is too big then healthy tissue will have been removed… Read more »

  • New European Medical Devices Regulations – Improving Standards for Patients (but what about patients in a post-Brexit UK?)

    Two new EU regulations were recently adopted to help regulate the over 500,000 types of medical devices and in-vitro diagnostic medical devices currently available in the EU. The medical devices regulation applies to the huge range of medical devices available – from relatively simple first aid technology such as sticking plasters, through drug delivery devices such as… Read more »

  • Reversing my view of Parking Assist

      During a chat with my Automotive group colleagues about developments in automotive technology I confessed that although I’d owned my “new” car for over a year, I hadn’t yet dared to try the parking assist function. Something about a car parking itself made me feel slightly uneasy. My colleagues pointed out that this was… Read more »