
Houthoff‘s practice is well-equipped to assist its clients with complex IP litigation. At the helm is Thomas de Weerd who has capabilities handling the remit of IP matters from trade secrets to non-contentious licensing and transactional matters, especially in outsourcing, data protection, and IT contexts. Thijs van Aerde harnesses advisory and litigious expertise, and agritech specialist Fleur Tuinzing-Westerhuis is considered a ’preeminent expert’ in litigation by clients.
Testimonials
Collated independently by Legal 500 research team.
‘Both Fleur Tuinzing-Westerhuis and Thijs van Aerde's knowledge covers the entire spectrum of IP law. The Houthoff team stands as a beacon of legal excellence in the area of plant patents.'
'Renowned for their unparalleled expertise and unwavering commitment to client satisfaction, this esteemed firm continues to exceed expectations. With a team of highly skilled attorneys possessing an in-depth understanding of IP, Houthoff offers a level of proficiency that is truly exceptional.'
‘An excellent team which has a broad IP offering. We have been working with this team for many years.’
‘Fleur Tuinzing-Westerhuis is a very smart lawyer - excellent at strategy and handling projects.'
- 'Thijs van Aerde is the Supreme Court specialist.'
‘Houthoff is a wise choice of team for its professionalism, considerable experience and extensive knowledge in various areas of law. The lawyers are proactive and provide excellent service. It is a pleasure to work with them.'
‘Fleur Tuinzing-Westerhuis is an agritech patent expert. Fleur is an experienced patent litigator and a preeminent expert in litigating cases concerning national and community plant variety rights. She has excellent procedural knowledge and is strategist in litigation relating to national and community plant variety rights.'
'Fleur is a lawyer with outstanding motivation and dedication to the case at hand. She has impressive ideas and finds excellent solutions. She is responsive, readily available, and pleasant to work with.’
Key clients
- HP
- Dell
- Dummen Orange
- Netherlands Vehicle Authority
- Nexperia
- VolkerRail
- Novartis
- Omnis Power
Work highlights
- Representing the client in patent litigation before the Dutch Supreme Court against the American multinational pharmaceutical company Bristol Myers Squibb (BMS).
- Representing the client in a patent and trade secret dispute at the Court of North Netherlands, division Leeuwarden.
- Representing the Swiss multinational pharmaceutical company Novartis in patent litigation before the Dutch Supreme Court against against Pharmathen, a leading complex drug delivery and formulation developer.
Lawyers

Practice head
The lawyer(s) leading their teams.
Thomas de Weerd