Jerome Spaargaren

Partner, UK and European Patent Attorney

With 30 years of international patent prosecution and litigation experience, Jerome is frequently engaged by clients for his expertise in strategic patent prosecution. He has also been involved in numerous litigation issues in various territories, including the UK, Germany and the US.

As head of the EIP Digital practice group, Jerome works in a wide range of technologies in the electronics sector, including machine learning, computer vision, data processors, graphics, data compression, telecommunications, data storage, cloud computing, computer software, optics, unmanned vehicles and imaging systems. He also works in the mechanical arts including medical devices and packaging machinery.

Jerome has been a member of the Chartered Institute of Patent Attorneys (CIPA) Patent Law Committee and represented CIPA before the Standing Committee on the Law of Patents at the World Intellectual Property Organization in Geneva to negotiate the Patent Law Treaty (2000).

In addition to his work as a patent attorney, Jerome is an inventor of an automated bookmark, the iMark, and various location-based technologies.


  • Providing pre-action and ongoing technical support in relation to validity and infringement of certain standard essential patents as part of representing Conversant Wireless in its successful Supreme Court proceedings against Huawei and ZTE.
  • Unwired Planet vs. Apple (Northern District of California). Acted for patent owner as global prosecution counsel in relation to post-grant proceedings
  • Unwired Planet vs. Google (District of Nevada). Acted for patent owner as global prosecution counsel in relation to post-grant proceedings
  • Unwired Planet vs. Apple, RIM (International Trade Commission, Washington DC). Acted for patent owner as patent counsel
  • Visto vs. Research in Motion. Acted for patent owner in international litigation relating to email synchronization technology, resulting in a $267.5 million settlement in favour of patent owner
  • Visto, European Patent Office, Examination Proceedings. Lead prosecution counsel in heavily contested proceedings resulting in the grant of three key European patents relating to email synchronization technology
  • Orange Personal Communications Services Ltd. Appeal from Opposition by Swisscom (European Patent Office.) Lead prosecution counsel for patent owner, standard essential patent relating to SIM card technology, resulting in patent being upheld
  • Orange Personal Communications Services Ltd. Global lead prosecution counsel 2005-2007
  • British Telecommunications, plc. Prosecution counsel, drafting two patents relating to keyword search technology which have subsequently been litigated (BT vs. Google)
  • Hamamatsu Photonics K.K. Appeal from Examination (European Patent Office.) Lead prosecution counsel for patent owner. Patent owner was held to be entitled to file one or more auxiliary requests in addition to a main request, and to maintain all such requests
  • Nikon Corporation. European prosecution counsel for patents relating to various technologies such as camera exposure control and lithography
  • Koninklijke Philips N.V. Drafting counsel for patents relating to optical discs and medical technologies

Recent work

  • Acting for Unwired Planet International Limited in patent and FRAND litigation against Google, Samsung & Huawei (patents concerning Android, 2G, 3G and LTE technologies).

Published articles

  • 1998; Volume 20; No 8
    European Intellectual Property Review (EIPR), A Conventional Way to Reduce Costs in the European Patent System

Education and qualifications

Jerome was one of the youngest people ever to pass the qualifying examinations for UK patent attorneys.

  • 1993 — 1994
    Post-Graduate Certificate in Intellectual Property Law, Queen Mary, University of London
  • 1988 — 1991
    MA Physics (First Class), Oxford University
  • 1983 — 1988
    Ysgol Aberconwy, Conwy, North Wales
  • 1981 — 1983
    Hale School, Perth, Western Australia

Career history

  • 2000 — present
    Partner, EIP, London
  • 1995 — 2000
    Partner, RGC Jenkins & Co, London
  • 1992 — 1995
    Associate, Bailey Walsh & Co, Leeds

Awards and recognition

  • Chambers and Partners, 2022 Ranked Lawyers Intellectual Property: Patent Attorneys Band 1.
  • Legal 500, 2022. (link)
  • Recommended in Who's Who Legal: IP 2021. (link)
  • Ranked as 'Highly recommended' in Patent prosecution in UK, Leaders League 2021 (link)
  • Recommended IAM Patent 1000, 2021. (link)
  • Ranked as a "Patent Star", IP Stars 2021 (link)
  • Recommended in JUVE Patent UK rankings 2021. (link)
  • IAM Global Leaders, 2021 (link)
  • Chambers and Partners, 2021 Leading Individuals Band 1. "Jerome is a quick and deep thinker, and his ideas are full of originality."
  • Legal 500, 2020. Jerome ‘is readily available and always provides useful insight into complex matters.’
  • IAM Patent 1000, 2020. Jerome "brings personal skill and insight as an inventor to the table for clients." (link)
  • Recommended in Who's Who Legal Patents, 2020. (link)
  • Ranked as a "Patent Star", IP Stars 2020 (link)
  • Recommended in Juve Patent, 2019 for digital communications, electronics (link)
  • Chambers and Partners, 2020: Jerome “is feted for his expertise in semiconductor science, optics and medical devices”.
  • Legal 500, 2020
  • Ranked as a "Patent Star", IP Stars 2019 (link)
  • IAM Patent 1000, 2019. "Jerome Spaargaren heads up the digital group and is renowned for his outstanding telecoms and medical technology insight." (link)
  • Legal 500, 2018: Recommended Patent Attorney
  • Ranked as "Patent Star", IP Stars 2018
  • IAM Patent 1000, 2018. "Electronics whizz Spaargaren loves working with computer systems, high-tech optics and exciting new software."
  • Chambers & Partners, 2017: Jerome is "noted for his command of hi-tech electronics, medical device and optic technologies" and has an "innovative approach to patent prosecution."
  • Legal 500, 2017: Jerome "attracts praise for his ‘extensive technical capability, which enables him to understand core aspects of technical matters at hand’."
  • Ranked as a "Patent Star" and "highly recommended", IP Stars 2017
  • IAM Patent 1000, 2017. "Multinational semiconductor and software design company ARM is in safe hands under the guidance of digital practice group head Jerome Spaargaren."
  • IAM Patent 1000, 2016. Jerome "is an authority on computer systems, high-tech optics and various medical technologies".
  • Legal 500, 2015. "Jerome Spaargaren is highly recommended"
  • Chambers & Partners, 2015. Leading Individuals Band 1. "Jerome Spaargaren leads the firm's digital practice group and concentrates on work concerning mobile telephony, optics, computer systems and medical technology."
  • IAM Patent 1000, 2015. "Spaargaren shines in the strategic patenting of electronic innovations."
  • Legal 500, 2014.
  • IAM Patent 1000, 2014. "Melding style and substance, Jerome Spaargaren works his strategic magic across the contentious/non-contentious divide."
  • Legal 500, 2013.
  • Chambers & Partners, 2013. "Jerome Spaargaren is renowned for his dynamism and talent, especially with regard to communications, medical technology and software."
  • IAM Patent 1000, 2013. "the "superb" Jerome Spaargaren is a "maverick performer with a strong character" who shines in international prosecution."
  • IAM Patent 1000, 2013. "Jerome Spaargaren wins great acclaim for fostering an innovative and entrepreneurial culture."

Languages spoken

  • English
  • Dutch (Proficient)
  • German (Basic)
  • French (Basic)
  • Hungarian (Basic)