Patent information user groups
Europe
CEPIUG - Confederacy of European Patent Information User Groups
Europe - alphabetically by country
Denmark - Patent Information Forum
France - Club Francophone d'Information Brevet
Germany - Recherchezirkel
Italy - Associazione Italiana Documentalisti Brevettuali
The Netherlands - Werkgemeenschap Octrooiinformatie Nederland
United Kingdom - Patent and Trademark Group
Outside Europe
USA - Patent Information User Group