Inventor · disambiguated record
Johannes Wittkowski
Also filed as: WITTKOWSKI JOHANNES
3 granted patents·573 citations·filing 1993–2000
82Inventor score
Technology areasH04R
Files withETYMOTIC RES INC3
Top patents by PatentIndex Score
3 records- 0197US5524056AHearing aid having plural microphones and a microphone switching systemETYMOTIC RES INC·Filed 1993·Granted Jun 4, 1996·315 cites·21 claims
- 0296US6327370B1Hearing aid having plural microphones and a microphone switching systemETYMOTIC RES INC·Filed 2000·Granted Dec 4, 2001·131 cites·12 claims
- 0394US6101258AHearing aid having plural microphones and a microphone switching systemETYMOTIC RES INC·Filed 1997·Granted Aug 8, 2000·127 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →