Inventor
HAERTL CHRISTOF
DE12 patents
⚠️ This page may combine multiple inventors who share the name “HAERTL CHRISTOF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIEMENS AG
10 patentsUS4987597AJan 22, 1991
Apparatus for closing openings of a hearing aid or an ear adaptor for hearing aids
SIEMENS AG229 citations98
US4953215AAug 28, 1990
Arrangement to prevent the intrusion of foreign matter into an electro-acoustical transducer
SIEMENS AG53 citations96
US4639556AJan 27, 1987
Hearing aid with a flexible printed circuit board
SIEMENS AG55 citations96
US4716985AJan 5, 1988
In-the-ear hearing aid
SIEMENS AG81 citations95
US5257315AOct 26, 1993
Hearing aid to be worn in the ear
SIEMENS AG24 citations92
US5188540AFeb 23, 1993
Hearing aid having electrical contact means arranged in a battery compartment
SIEMENS AG32 citations92
US4476353AOct 9, 1984
Hearing aid device to be worn in the ear
SIEMENS AG28 citations92
US4834927AMay 30, 1989
Method and apparatus for producing an ear impression
SIEMENS AG52 citations91
US4763752AAug 16, 1988
Mount for a sound transducer, particularly an earphone
SIEMENS AG29 citations91
US4840249AJun 20, 1989
Apparatus for srewing a cover onto a screw neck of a hearing aid
SIEMENS AG13 citations72