Intellectual property rights

Effective legal protection is essential if you wish to retain the intellectual property rights to your product or creation. This applies to your trademarks, logos and domain name as well as your models and designs. And you also want to ensure that your marketing and after-sales services are taken care of effectively.

Safeguarding your intellectual property rights

At Ploum, our specialists can advise and assist you in protecting your intellectual property rights. For example, we can file your trademarks and designs with the official authorities worldwide and we can also investigate a trademark’s national and international availability.

Do you have any questions about the information on this page? - (english)

Please contact us through the phone number below or send us an email.

+31 (0)10 4406440 info@ploum.nl

What we can do for you

Tackling illegal practices

If you are troubled by unfair or illegal trade practices, marketing and advertising, competition, promotional games of chance or a domain name dispute, or if you have discovered that others are trading imitations or parallel imports of your products or their packaging, Ploum will help you tackle this, e.g. by setting up a programme to combat counterfeit goods or parallel trade. Our experts include an EU trademark and design attorney as well as other specialists in trademark law, design law, copyright law, trade name law and marketing and advertising law. We will represent you in court proceedings, before the Netherlands Authority for Consumers and Markets or the Advertising Code Commission if the need should arise.

International support

Since the challenges facing businesses do not respect national boundaries, Ploum maintains a wide and reliable network of agents, and we cooperate with other lawyers and service providers on a daily basis all over the world. We are also associated with a number of organisations such as MARQUES (the European Association of Trade Mark Owners) and the International Trademark Association (INTA). In addition, we act as lead counsel for a large number of non-European clients and are therefore their first point of contact in the EU. We help them set up projects that may involve more than 50 different countries.

"Ploum is one of the most responsive and commercial law firms we use." - Chambers 2025

"Ploum have good attention to detail while also seeing the bigger picture and eyeing good results. The lawyers are always available." - Chambers 2025

"What stands out about Ploum is that they are very engaged in the IP community." - Chambers 2025

‘Willem Leppink is the most likeable and measured IP lawyer in the Netherlands. A pleasure to work with and a star in the advertising law arena.’ - Legal 500 EMEA 2025

‘Willem Leppink is the star of the show.' - Legal 500 EMEA 2025

‘Experts in their field but easy to work with. Collaborative and commercial in their approach and their advice. Excellent client service both in the legal advice they deliver and their service. Transparent and thorough.' - Legal 500 EMEA 2025

‘Willem Leppink and Sabin Tigu are both outstanding partners. I would not hesitate to work with them and trust their judgment and strategic approach.’ - Legal 500 EMEA 2025

‘Paul Trapman and Willem Leppink deliver high-quality legal services. Quick to answer and explain clearly. They are committed to understanding the individual needs of each client. A wonderful team for IP matters in the Netherlands.’ - Legal 500 EMEA 2025

‘Willem Leppink is an experienced and dedicated lawyer. He always gets the job done and is easy to work with. We would recommend him without hesitation.’ - Legal 500 EMEA 2025

‘Willem Leppink has a very broad knowledge and is able to address complex issues at short notice and provide clear and pragmatic guidance. Sabin Tigu is well-versed in trade mark matters; he is able to see the bigger picture and take into account all aspects in litigation matters.’ - Legal 500 EMEA 2025

‘The team is very talented and provides business oriented legal advice. They also know our industry very well.’ - Legal 500 EMEA 2025

Attorney at law, Partner

Willem Leppink

Expertises:  Intellectual property rights, European Law, Trademark and Design registration, Marketing and Advertising, Technology, Media and Telecom, Food, E-commerce,

Attorney at law, Partner

Sabin Tigu

Expertises:  Intellectual property rights, Trademark and Design registration, Technology, Media and Telecom, Start-up and Scale-up,

Meet the team

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