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Jeroen Boelens
Partner

Jeroen Boelens

Advocaat

Languages
  • Dutch
  • English
Social media

Jeroen Boelens is partner of the Intellectual Property practice area group of our firm in Amsterdam.

He is specialised in all aspects of intellectual property law, with particular expertise in patent law, trademark law, trade name law, unfair competition (including misleading advertising), and licensing. Jeroen advises and litigates in complex, often cross-border disputes and assists clients with strategic advice and transactions, including license and R&D agreements. His client base ranges from international blue-chip companies to innovative scale-ups and spin-offs, active in sectors such as life sciences, technology, consumer goods, financial services, and the pharmaceutical industry.

In addition to his practice, Jeroen is a frequent author and speaker in the field of intellectual property. He is a member of several leading (inter)national professional associations, including AIPPI, EPLAW, INTA, and LES. He also serves on the editorial board of the journal European Patent Litigation in Practice and is co-author of the treatise ‘Kort Begrip van het Intellectuele Eigendomsrecht’.

Jeroen has been with CMS since 2025. Prior to that, he was a partner at NautaDutilh in New York and Amsterdam, where he headed the Dutch IP practice.

Awards & Recognitions
01
  • Quote
    “Jeroen Boelens is a very smart lawyer. He is pragmatic and proactive, and he is a very good litigator. On top of that, a very nice person to work with.”
    The Legal 500 EMEA, 2024
  • Quote
    “In just over a decade, technology specialist Jeroen Boelens has reached great heights and now leads the IP team. His work extends to licensing and technology-related M&A, allowing him to work on high-stakes instructions as well as cross-border disputes.”
    IAM Patent, 2024
  • Quote
    “Jeroen is a strategic litigator combining sharp analytical skills with clear, action-oriented advice on complex legal matters.”
    The Legal 500 EMEA, 2023
  • Quote
    “A patent all-rounder with a busy schedule who has been involved in a wide variety of cases since the beginning of his career.” (One to watch in Dutch patent litigation)
    JUVE Patent, 2023
  • Quote
    “Not only a tough litigator but also a smart negotiator.”
    IAM Patent, 2022
  • Quote
    “What I appreciated about Jeroen is that he knows his stuff. He has excellent command of patent law and combines that with a strong commercial mind. He solves problems; you can always put ideas to him and discuss the issues with him to come up with a creative and sensible plan.”
    The Legal 500 EMEA, 2022
  • Quote
    "Jeroen Boelens "knows his stuff" when it comes to patent law."
    The Legal 500 EMEA, 2022

Publications

  • P.G.F.A. Geerts (red.), A.M.E. Verschuur (red.), J.M. Boelens, A.P. Groen, H.J. Koenraad, D.F. de Lange, H.M.H. Speyart van Woerden, Kort begrip van het intellectuele eigendomsrecht, Deventer: Wolters Kluwer 2024.
  • J.M. Boelens, J. Vrielink en L.C. Zanting, ‘The case law of the Unified Patent Court from 20 November 2024 to 31 March 2025’, EPLP 2025, p. 111-122.
  • J.M. Boelens, ‘Extension of the Battle Zone – Is the UPC Slowly Taking Over?’, EPLP 2025, p. 59-60.
  • J.M. Boelens, ‘A View from the Inside – Interview with Prof. mr. dr. Blok, UPC Court of Appeal Judge’, EPLP 2024, p. 283-289.
  • J.M. Boelens & L.M. Delleman, ‘Chapter 28 – The Netherlands’ in: H. Goddard et al., Trade Secrets Throughout the World 2024, Thomson Reuters 2024.
  • Rb. Den Haag 20 September 2023 (VerifyIP), IER 2024/30 m.nt. J.M. Boelens.
  • J.M. Boelens, ‘The Times They Are A-Changing’, EPLP 2024, p. 195-196.
  • J.M. Boelens, L.M. Delleman en P. Damerell, ‘Obviousness of Dosage Regimen Patents from Two Sides of the North Sea’, EPLP 2024, p. 203-206.
  • Hof Amsterdam 11 July 2023 (Fishflow/Poseidon), IER 2024/13, m.nt. J.M. Boelens & L.M. Delleman.
  • GKB 10 oktober 2023, G2/21 (Alexion), IER 2024/12 m.nt. J.M. Boelens.
  • J.M. Boelens, J. Vrielink en L.C. Zanting, ‘The case law of the Unified Patent Court from 4 December 2023 until 4 June 2024’, EPLP 2024, p. 149-192.
  • Rb. Den Haag 3 October 2023 (Grünenthal/Teva), IER 2024/8 m.nt. J.M. Boelens.
  • Hof Den Haag 15 August 2023 (BMS/Teva, Sandoz), IER 2024/7 m.nt. J.M. Boelens.
  • J.M. Boelens, ‘Clot Forming of International Patent Litigation’, EPLP 2024, p. 26-28.
  • Rb. Den Haag 9 mei 2022 (Ericsson/Apple), IER 2023/6 m.nt. J.M. Boelens.
  • J.M. Boelens, ‘Who is entitled to bring a UPC revocation action?’, EPLP 2023, p. 1-56.
  • J.M. Boelens, ‘Het (spoedeisende) belang van de SEP-houder na Sisvel/Xiaomi’, IER 2022/13.
  • Hof Den Haag 30 juli 2019 (Biogen/Celltrion), IER 2020/18 m.nt. J.M. Boelens.

Memberships & Roles

  • Member Association Internationale pour la Protection de la Propriété Intellectuelle (AIPPI)
  • Member European Patent Lawyers Association (EPLAW)
  • Member International Trademark Association (INTA)
  • Member Licensing Executives Society International (LES)
  • Editorial member of the magazine European Patent Litigation in Practice (EPLP)
  • UPC Representative at the UPC

Education

  • The Law Firm School (with honours), 2014
  • LLM Law & IT (with honours), 2012 (University of Groningen)
  • LLM Dutch law (corporate law and civil law), 2012 (University of Groningen)
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