Inventor
EGGERT ALBERT
DE7 patents
Patents
7 patentsUS4471171ASep 11, 1984
Digital hearing aid and method
BOSCH GMBH ROBERT165 citations95
US4672672AJun 9, 1987
Miniature hearing aid
BOSCH GMBH ROBERT114 citations93
US4395601AJul 26, 1983
Modular hearing aid
BOSCH GMBH ROBERT55 citations93
US4689820AAug 25, 1987
Hearing aid responsive to signals inside and outside of the audio frequency range
BOSCH GMBH ROBERT74 citations92
US4418787ADec 6, 1983
Hearing aid with audio path duct extension element, and extension element attachment
BOSCH GMBH ROBERT36 citations88
US4258229AMar 24, 1981
Body vibration pickup
BOSCH GMBH ROBERT26 citations81
US4539441ASep 3, 1985
Hearing-aid with integrated circuit electronics
BOSCH GMBH ROBERT19 citations75