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Denys Bertels

Patent attorney

“It is important to understand clients’ business well. Thinking along with the client and including aspects such as marketing and costs leads to optimal expert advice.”
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Denys Bertels

  • Trademarks & Designs
  • European and Benelux Trademark and Design Attorney
  • Associate

Denys Bertels started as a Trademark Attorney at V.O. in 2008. Before that she studied Civil law (1995) at Leiden University, where she specialized in intellectual property law.

More information about Denys

Denys has considerable experience looking after the interests of not only small and medium size corporations but also of multinational corporations and representing them before the Benelux Office of Intellectual Property, WIPO as well as before the European Union Intellectual Property Office (EUIPO).

Her approach is to use her legal expertise for the practical and commercial interests of her clients to obtain optimal protection of their intellectual property rights. Next to general portfolio management, Denys represents clients in conflict and opposition cases. Her experience extends to strategic advice and drafting co-existence agreements and declarations, keeping in mind the legal position and commercial interests of the client.

Working experience

  • Trademark and Design Attorney, V.O. (2008-present)
  • Trademark and Design Attorney, Nederlands Octrooibureau NLO (1999-2008)
  • Trademark and Design Attorney, Shieldmark (1997-1999)


  • LLM in Civil law, Leiden University (1995)

Professional & Community Activities

  • Member of the Benelux Association for Trademarks and Designs (BMM)
  • Member of the Association des praticiens du droit des marques et des modeles (APRAM)
  • Member of the Pharmaceutical Trade Marks Group (PTMG)
  • Member of the International Trademarks Association (INTA)


  • English
  • Dutch

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