Cees Jansen

Of Counsel at VO Patents & Trademarks

Cees Jansen was the chair of VO from July 2007 to September 2019. Since then, he has been associated with the firm as an of counsel. He graduated in physics from the Delft University of Technology and was head of the patent department at two large technology-driven companies before he joined VO in 1993. His private practice focuses on similar technology-driven companies.

Mr Jansen has extensive expertise in high-tech systems such as radar, sonar, computer and telecommunication systems, as well as mechanical and physical systems. In addition, he specialises in developing patent strategies to effectively protect systems, products, replacement products, parts of systems and semi products. He gained vast experience in opposition proceedings and litigation, in particular infringement and nullification suits, both nationally and abroad, including the United States.

Previous testimonials for Mr Jansen include the following:

  • “The highest of high-tech companies make a beeline to Cees Jansen; he knows exactly what they are after, having served as head of patents in-house at two companies – unstintingly dedicated to quality, he always delivers” (IAM Patent 1000, 2019).
  • “Chair of the partnership Cees Jansen calls on his in-house experience when developing patent strategies for major companies. A technical all-rounder, he can be formidable when disputes heat up” (IAM Patent 1000, 2018).

Professional associations

  • Commission for Patent Attorneys in Private Practice

Firm details

VO Patents & Trademarks
Winthontlaan 6/G
4th floor
Utrecht 3526 KV

Contact details

See firm profile