Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Apparatus for srewing a cover onto a screw neck of a hearing aid

Apparatus for srewing a cover onto a screw neck of a hearing aid

US Patent 4840249 · Granted Jun 20, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Plug connection for jaw stump models2004
Precision attachments for dental technology capable of being cast on1998
Programmable hearing aid means worn in the auditory canal1998
Auditory canal insert for hearing aids1997
Hearing aid to be worn in the ear1993
Hearing aid having electrical contact means arranged in a battery compartment1993
Apparatus for closing openings of a hearing aid or an ear adaptor for hearing ai1991
Arrangement to prevent the intrusion of foreign matter into an electro-acoustica1990
Hearing aid with cerumen trapping gap1989
Method and apparatus for producing an ear impression1989
Method and apparatus for producing an ear impression1989
Method and apparatus for producing an ear impression1989