NL Patent Office

Public information office

You may consult NL Patent Office free of charge regarding any queries about patents and other ways of protecting industrial property.

Are you not sure whether to apply for patent or design protection? Or would you like to know whether a patent is still in force in the Netherlands? For these types of questions, you are welcome to consult our staff at the public information office.

Contacting us
You can contact the public information office Monday to Friday 9:00 am – 5:30 pm:

• By sending an e-mail to This e-mail address is being protected from spambots. You need JavaScript enabled to view it
• By telephoning +31 88 602 60 00
• By fax +31 88 602 90 24

The public information office aims to answer all queries within two working days. In the event of a delay in responding, the sender will be contacted.

Obligation of confidentiality
All employees of NL Patent Office have a duty to observe confidentiality. That means that you may speak freely with them about your idea or invention.