Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5046102 | Hearing aid with adjustable frequency response | Thomas Beckenbauer, Guenther Beer | 1991-09-03 |
| 4868881 | Method and system of background noise suppression in an audio circuit particularly for car radios | Klaus Deuter | 1989-09-19 |
| 4791620 | Tactile hearing aid | Hans Leysieffer | 1988-12-13 |
| 4773095 | Hearing aid with locating microphones | Thomas Beckenbauer | 1988-09-20 |
| 4712244 | Directional microphone arrangement | Thomas Beckenbauer, Guenther Beer | 1987-12-08 |
| 4428377 | Method for the electrical stimulation of the auditory nerve and multichannel hearing prosthesis for carrying out the method | Manfred Zollner, Christian Hoffmann | 1984-01-31 |
| 4423291 | Method for operating a speech recognition device | Wolfgang Daxer | 1983-12-27 |
| 4403118 | Method for generating acoustical speech signals which can be understood by persons extremely hard of hearing and a device for the implementation of said method | Manfred Zollner, Christian Hoffmann | 1983-09-06 |
| 4390748 | Electro-acoustical measuring device and method | — | 1983-06-28 |
| 4390756 | Method and apparatus for generating electrocutaneous stimulation patterns for the transmission of acoustic information | Christian Hoffmann, Manfred Zollner | 1983-06-28 |
| 4289935 | Method for generating acoustical voice signals for persons extremely hard of hearing and a device for implementing this method | Manfred Zollner, Christian Hoffmann | 1981-09-15 |