About MerkWerk Team

Ivo Haaijer - Founder / European Trademark Attorney
Mr. Ivo Haaijer
Founder / European Trademark Attorney
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  • Trademark & design
  • Strategic IP portfolio management
  • IP due dilligence
  • IP infringement
  • Negotiations and contracts


  • Graduate in law University of Groningen
  • more than 15 years experience in IP matters
  • European Trademark Attorney (EUIPO)
  • Certified Trademark Attorney (BMM)


  • Member of Benelux Association for Trademark and Design (BMM)
  • Member of International Trademark Association (INTA)
  • Member of International Association for the protection of Intellectual Property (AIPPI)

After working at another Dutch IP firm Ivo founded MerkWerk IP in 2001. With Ivo’s experience and insights in Trademark, design and domain name issues he is able to deliver clear and strategic advice so that his clients can make the best decisions regarding the protection of their IP assets.

Supported by his team of qualified attorneys and paralegals Ivo he is more than capable of managing large international IP portfolios, guiding through the procedures and possibilities, dealing with negotiations and infringement matters and delivering strategic advice ensuring the best possible protection.

His network of (overseas) attorneys and IP colleagues, his knowledge of international rules and procedures, ensures that his clients IP rights are properly protected in the Benelux, in Europe and beyond.

Marieke Reijmers

Benelux / European trademark attorney (paralegal)
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Marieke has more than 15 years experience in the trademark world. She is working at MerkWerk since 2015. After paralegal work at several renowned trademark firms she moved to the East of the Netherlands and joined us in 2015. By her wide knowledge and broad experience Marieke is well equiped to assist with trademark searches, worldwide trademark registrations, portfolio management and all IP related matters.

“Intellectual Property is a field that I accidentally rolled in, but what has given me a lot of fun right from the start. Administrative handling combined with its content, as well as operating at national and international level, involves various activities every day. Protecting the interests of our clients, critical thinking with the client and achieving its goals are paramount.”