Patents   

• Dutch Patent Office: Octrooicentrum Nederland (OCNL)
• European Patent Office (EPO)
• World Intellectual Property Organisation (WIPO)
• Institute of Patent Attorneys

 

Trademarks and Designs    

• Benelux Trademark Office (BBIE)
• Europees Merkenbureau (EUIPO)

 

Other    

• Werkgemeenschap Octrooiinformatie Nederland (WON) Study Group Patent Information Netherlands
• Danish Association of Intellectual Property Administrators (DAIPA)
• Norwegian Association of Intellectual Property Administrators (NAIPA)