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Willem Leppink

Work +31 10 440 6441

Work Department

Intellectual Property and Marketing law, Technology and Media


Partner/Lawyer, Areas of expertise: Advertising and marketing law, Intellectual property (trade marks, designs, copyrights, domain names), Unfair competition and unfair commercial practices.


Willem heads the IP and marketing law group at Ploum Lodder Princen. Apart from representing international household names in major trademark and advertising disputes, he helps clients to coordinate brand and marketing-related projects around the globe. He assists brand owners in setting up and managing pan-European customs border detention orders. In cooperation with his network of local counsel, he has managed projects ranging from advertising clearance and consumer warranties to website localisation and environmental compliance. Willem is a domain name panellist with the World Intellectual Property Organisation form both UDRP and .nl disputes, and with the Czech Arbitration Court for EU. disputes. He is on the editorial board of the Journal of Intellectual Property Law & Practice (Oxford University Press) and regularly lectures at various universities. Willem was recommended as expert on trade mark law in the WTR1000 of World Trademark Review and in Chambers Europe. He is listed in the Legal 500, the Guide of the World’s Leading Trade Mark Law Practioners, Best Lawyers for Advertising Law and PLC’s Which Lawyer. He was the winner of both the 2010 and the 2011 International Law Office Client Choice Award for intellectual property law. He was a partner at NautaDutilh and Simmons & Simmons before joining Ploum Lodder Princen in 2009.


Dutch, English, German, elementary proficiency of Western Frisian


MARQUES (Association of European Trade Mark Owners), council member, Netherlands Advertising Law Association, co-founder and secretary, International Trademark Association (INTA), European Trade Mark Association (ECTA), AIPPI.


Willem studied at Western Carolina University and graduated from Groningen University in 1994.


Intellectual property: trade marks, copyrights and design rights

Within: Intellectual property: trade marks, copyrights and design rights

Ploum serves clients in the automotive, technology, food and beverage, as well as fragrance sectors, and handles pan-European contentious and advisory work. Willem Leppink heads the group and is supported by senior associate Sabin Tigu in assisting clients including Harley-Davidson, Arla Foods, Donna Karan, and the Ford Motor Company.

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Legal Developments in Netherlands

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
  • Dynamic Contracts: Changing employment practices in the digital era

    Digital platforms designed to deliver professional services are changing the European employment landscape as both employers  and workers look for more flexible ways to work.
  • New Late Payments Directive

    Despite the implementation of Directive 2000/35/EC on combating late payment in commercial transactions in 2002, the European Commission (the “Commission”) concluded in 2008 that late payments were still widespread in the EU. It also turned out that public authorities in certain Member States were stipulating unjustifiably long contractual payment periods for transactions.
  • Amendment of the Collective Redundancy Notification Act

    On 1 March 2012 the Collective Redundancy Notification Act (Wet Melding Collective Outslug, "WACO") will be amended. What changes does this involve?
  • New Corporate Law Legislation

    In the field of corporate law, there are four (coming) Acts that attract attention, namely the introduction of the tenth book of the Dutch Civil Code, the amendment of the Marital Property Act and, to conclude, the coming entry into effect of the Management and Supervision Act and the Flexibilization of BV Act. Please find below a short explanation of each Act.
  • Shipping & Transport - Netherlands

    Attaching maritime assets in insolvency
    - AKD
  • The employment of foreign workers. What issues do you need to be aware of as an employer?

    The employment of foreign workers regularly raises questions. A brief summary of the most important areas of attention will be dealt with in this article.
    - AKD
  • Non-solicitation agreement violated via LinkedIn

    A non-solicitation agreement usually restricts the ability of an employee - after an employment contract has ended - to approach the clients of the former employer. The former employee of a software company recently discovered that the scope of such an agreement can also include contacts made via LinkedIn.
    - AKD

    Few jurisdictions can boast a foreign direct investment record like the Netherlands. As the world's seventh largest inward receiver of investments, housing approximately 9000 foreign-owned companies, the country's dynamic business environment provides an invaluable insight into macro investment trends.
    - AKD
  • Forming a company in the Netherlands

    The Netherlands and Dutch law The Netherlands is a perfect business location for foreign entrepreneurs (2,000 subsidiaries in Amsterdam, 140,000 jobs). It is the gateway to densely populated Western Europe and has a well-developed logistic and technical infrastructure.
  • Leasing of commercial premises in the Netherlands

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