Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5279292 | Charging system for implantable hearing aids and tinnitus maskers | Joachim Baumann, Hans Leysieffer | 1994-01-18 |
| 5277694 | Electromechanical transducer for implantable hearing aids | Hans Leysieffer, Joachim Baumann | 1994-01-11 |
| 4611598 | Multi-frequency transmission system for implanted hearing aids | Klaus Kunick | 1986-09-16 |