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Jan-Diederik Lindemans

Phone: +
7, Rue Joseph Stevens
Brussels, B - 1000

Ranked as one of Belgium's top patent litigators by Intellectual Asset Management (IAM) 1000 - The World's Leading Patent Practitioners guide.

Jan-Diederik Lindemans is a partner in Crowell & Moring's Brussels office in the Litigation and Intellectual Property Groups. His practice focuses on litigation for clients that are mostly active in sectors driven by technology, innovation and creativity.

Jan-Diederik is first and foremost a litigator and has over 15 years’ experience defending his clients’ interests in ex parte, preliminary and permanent injunction proceedings, and in accelerated and standard proceedings on the merits. Issues dealt with relate to intellectual property, trade secrets, unfair competition and other contentious matters. Jan-Diederik is also often consulted by clients in pre-trial matters such as pre-trial discovery (saisie contrefaçon), trade secrets compliance and anti-counterfeiting strategy. He further advises in non-contentious matters relating to licensing or transfer of intellectual property, (re)structuring IP portfolios, joint ventures and other types of creative/technological collaboration.

Jan-Diederik represents a wide range of clients, most of whom are active in the chemical, pharmaceutical, and biotechnological sectors, or the advertising, media, entertainment, and fashion industries. His focus is on legal advice that has an immediate impact on his clients’ business (e.g., product recall avoidance or opposition proceedings in relation to access to confidential information).

For his clients in the chemical, life sciences and biotechnology sectors, Jan-Diederik has, e.g., filed protective letters and represented clients in complex patent validity proceedings (often involving cross-border issues). His clients involved in entertainment and the media call on him to advise in negotiations as well as relying on him to defend their various IP rights (relating to e.g., on and off-screen talent, content production and licensing, and collecting societies). For clients in the fashion industry, Jan-Diederik has assisted with their IP portfolios and has represented them in commercial disputes, distribution, counterfeiting matters, search and seizure, and EU-wide or national border measures.

Representative Matters:

  • Defended leading pharmaceutical companies in preliminary injunction proceedings regarding generic versions of blockbuster medicinal products.
  • Defended a multinational active in the sweetener industry in ‘bet the company’ all-or-nothing third party opposition proceedings against a direct competitor involving six appearances before the Belgian Supreme Court.
  • Executed the largest counterfeit seizure within the Benelux area on behalf of a producer of animal feed additives and upheld the client’s patent and trade secret rights in proceedings on the merits.
  • Initiated cease and desist proceedings against a multinational electronics manufacturer for breach of the terms of use of advertising material produced by the client.
  • Brought proceedings against the tabloid press on behalf of a well-known performer and his family in connection with the unauthorized use of images.
  • Defended shoe manufacturers against copyright and trademark claims by competitors relating to both orthopaedic and high-end luxury shoes.

Legal Rankings:

Jan-Diederik has consistently been recommended in respected legal journals such as Legal 500 EMEA, IAM Patent 1000 and the World Trademark Review 1000.

  • Chambers Europe: “Jan-Diederik Lindemans is well recognised in the market for his experience in patent infringement matters.”
  • Legal 500 EMEA: recommended and described as a name to note for IP and competition disputes in for Dispute Resolution, Jan-Diederik has also been described as an “expert in entertainment and IP law,” a “real specialist with an eye for detail and the needs of the client.”
  • IAM Patent 1000: described as a “redoubtable campaigner: ‘Intellectually sharp, he is clear in his arguments and excellent at pleading.’”
  • World Trademark Review 1000: “Media, entertainment, food and fashion sage Jan-Diederik Lindemans is another pillar of the firm, with a flair for injunctive relief proceedings and pre-trial discovery” and “Peers praise him as a ‘great litigator’ with the proven ability to handle complex trademark cases.’”
  • The only Belgian patent litigator to be ranked by his senior peers in Legal Media Group’s Rising Stars 2015.

Jan-Diederik joined Crowell & Moring’s Brussels office in 2004 after working for a Brussels-based IP boutique law firm for several years. He is a frequent public speaker and the author of various publications on IP and judicial law. He was actively involved in the debate concerning the revision of the EU directive for trade secrets, and has closely monitored the developments concerning the Unified Patent Court.


  • Catholic University of Leuven (2001)
  • Ghent University, post academic course in biotechnology (2013)


Admitted to practice: in Belgium and before the European Court


  • The International Association for the Protection of Intellectual Property (AIPPI)
  • Brussels Bar Association
  • Belgian Association for Copyright
  • International Association of Entertainment Lawyers (IAEL)
  • ICC Commission on Intellectual Property
  • ICC Task Force on Trade Secrets
  • Amcham EU Intellectual Property Committee

View More

"Trade Secrets and Whistle Blowers," IJE/IBJ Deep Dive, Brussels, Belgium (December 5, 2019). Speakers: Jan-Diederik Lindemans, Emmanuel Plasschaert, Gunther Meyer, Judith Bussé, and Evelien Jamaels.
"Discover the Strategic Opportunities Offered by Intellectual Property Rights," WTCB, Centexbel, Sirris and Essencia in Limelette, Belgium (November 7, 2019). Expert Panel Member: Jan-Diederik Lindemans.
IAM Patent 1000 Recommends Crowell & Moring's Brussels Intellectual Property Group (Jun.12.2019)
Firm News / Announcement
Legal 500 EMEA Recommends Crowell & Moring in 11 Practice Areas and Recognizes 14 Lawyers (Apr.16.2019)
Firm News / Announcement
Chambers Ranks 7 Crowell & Moring Lawyers and 6 Practice Groups in 2019 Europe Edition (Mar.21.2019)
Firm News / Announcement
IAM Patent 1000 Recommends Crowell & Moring’s Brussels Intellectual Property Group (Jun.28.2018)
Firm News / Announcement
Utynam's Heirs Managing Intellectual Property (May 1, 2018)
In the News
Legal 500 Europe, Middle East & Africa Recommends Crowell & Moring in 11 Practice Areas and Recognizes Three Individuals (Apr.25.2018)
Firm News / Announcement
Highlights From The Fordham IP Conference Managing Intellectual Property (April 10, 2018)
In the News
"Trade Secrets," Twenty-Sixth Annual Fordham Intellectual Property Law and Policy Conference, New York, NY (April 5, 2018). Panelist: Jan-Diederik Lindemans.

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Crowell & Moring LLP is an international law firm with more than 500 lawyers representing clients in litigation and arbitration, regulatory, and transactional matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation, as well as its ongoing commitment to pro bono service and diversity. The firm has offices in Washington, DC, New York, Los Angeles, San Francisco, Orange County, London, and Brussels.

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