Patent Café’s List of Inventor Organizations by Statehttp://12www.patentcafe.com/inventor_orgs/clubs.htmlIf you don’t find an inventors group listed in your area on this website the following sites are also worth a look:
Inventor’s Digest Online Organizations for Inventorshttp://www.inventorsdigest.com/connect/orgs.html
Ibiblio List of Inventor’s Organizationshttp://www.ibiblio.org/patents/txt/invent.txt