Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189704 | Hearing aid circuit having an output stage with a limiting means | — | 1993-02-23 |
| 4995085 | Hearing aid adaptable for telephone listening | Reinhard Kern, Helmut Schlosser | 1991-02-19 |
| 4845755 | Remote control hearing aid | Dieter Busch, Friedrich Harless | 1989-07-04 |
| 4629833 | Electric hearing aid | Reinhard Kern, Helmut Schlosser | 1986-12-16 |
| 4189788 | Headset | Walter Schenke | 1980-02-26 |