Willem Leppink

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Practice Areas

Intellectual property rights

Trade mark law

Advertising and marketing law

Domain names


Willem provides litigation services and advice in the field of trademark, copyright and advertising law. He represents well known companies throughout Europe in counterfeiting and other infringement matters. He is very experienced in coordinating European brand and marketing-related projects. In the Netherlands he litigates in conflicts regarding intellectual property and in cases about misleading and comparative advertising. Before joining Ploum, Willem was a partner with NautaDutilh and Simmons & Simmons. Willem is the chair of the organization that is responsible for the professional education of Benelux trad mark attorneys

Professional Memberships

MARQUES, the European Association of Trade Mark Owners, member of the executive committee

Dutch Advertising Law Association (VvRr), honorary member

International Trademark Association (INTA)

Benelux association for trademark and design law (BMM)

European Trade Mark Association (ECTA)

Association Internationale pour la Protection de la Propriété Intellectuelle (AIPPI)

Netherlands Association of Intellectual Property Litigiation Lawyers (VIEPA)


Most recent:

‘European trade mark law: Quo Nunc Vadis?’, Journal of Intellectual Property Law and Practice, Oxford University Press, januari 2019


Willem graduated from the University of Groningen in 1994. Before that he studied at School of Business of Western Carolina University.