He has a mechanical practice and works for SME’s and large companies that are developing production devices for the semiconductor industry, medical devices, household devices, and that are active in power generation technology and driving technology.

Over the years, Herman has gained a vast experience with medical devices, apparatus for producing cd’s, dvd’s and OLEDs, machinery for the packaging industry and power generation, pumps and household appliances as well as with software for controlling such devices and machinery. Herman has wide experience in patent cases before the opposition divisions and appeal boards of the EPO as well as the court in The Hague.

As a tutor for the official education for the qualification examination for Dutch patent attorneys, Herman teaches the practice of writing patent applications. Herman was also President of the Netherlands Institute of Patent Attorneys.

Herman is Head of the Arnhem branch office of V.O.

In his capacity as European Patent Litigator, Herman is allowed to act as UPC representative.

Since April 2026, Herman has been associated with V.O. as an of-counsel.

Working experience

• Patent Attorney, V.O. (1990-April 2026)
• Thomassen International B.V. (1989-1990)

Education

• MSc in mechanical engineering, Delft University of Technology (1989)

Directories

• Recognized as ‘The Netherlands Practitioner of the Year 2022’ by Managing Intellectual Property
• Recognized as IP Star (2020 – 2026) by Managing Intellectual Property

Professional & Community Activities

• Member of the board of directors and Chairman of V.O. (2019-2024)
• President of the Board of the Dutch Institute of Patent Attorneys (2006-2010)
• Secretary of the Board of the Dutch Institute of Patent Attorneys (2005-2006)

Languages

• English
• Dutch
• German