Hajo Kraak

Partner at VO Patents & Trademarks

Hajo Kraak has been a patent attorney at VO since 2007. He had previously worked as in-house patent counsel in the chemical industry (including fibres, electronic materials, chemicals and coatings) and in research-based pharmaceuticals. Mr Kraak continues to work for chemical as well as pharmaceutical companies. He graduated in organic and polymer chemistry from Leiden University in 1987 and has been active in patents ever since.

As a Dutch and European patent attorney Mr Kraak has dealt with a broad range of chemical, pharmaceutical and nutritional sciences and technologies. He gained considerable experience in obtaining patents and conducting opposition proceedings before the European Patent Office, including oral proceedings and in international patent litigation. He has also been active in conducting patent due diligence investigations and in developing patent strategies for various businesses, including lifecycle management in pharmaceuticals.

Mr Kraak is a member of the Dutch delegation for the European Patent Institute Council and a tutor for the Dutch qualifying examination.

Testimonials for Mr Kraak include the following:

  • “Otto Oudshoorn, Hajo Kraak and Frits Schut are mainstays of the life sciences and chemistry practice. Kraak is [one] of the firm’s experienced former in-house patent counsels and can be relied on for a commercially tuned-up service on chemical and pharmaceutical matters” (IAM Patent 1000, 2019).
  • “A former in-house counsel at AkzoNobel, Kraak is a legal and scientific polymath who is a heavyweight in the Dutch IP scene” (IAM Patent 1000, 2018).

Professional associations

  • epi
  • Netherlands Institute of Patent Attorneys

Firm details

VO Patents & Trademarks
WTC Arnhem
11th floor
Nieuwe Stationsstraat 10
Arnhem 6811 KS

Contact details

See firm profile