Patent Authorities
EPO, European Patent Office
www.epo.org
Search for Patents:
http://worldwide.espacenet.com/advancedSearch?locale=en_EP
USPTO, United States Patent & Trademark Office
patft.uspto.gov
Search for Patents:
http://patft.uspto.gov/netahtml/PTO/search-bool.html
JPO, Japan Patent Office
www.jpo.go.jp
Hearing Industry and Organisations
EHIMA – European Hearing Instrument Manufactures Association
www.ehima.com
Hearing Industry Association, HIA
www.hearing.org
hear-it.org – information on hearing, hearing loss, tinnitus and hearing loss treatment