Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12418282 | Pulse signal multiplier for providing a secondary pulse signal from a primary pulse signal of a pulse signal generator | Lars SCHWEIZER, Olaf BIESE | 2025-09-16 |
| 7542581 | Ear insert for a hearing aid | — | 2009-06-02 |
| 6807445 | Totally implantable hearing system | Hans Leysieffer | 2004-10-19 |
| 6565503 | At least partially implantable system for rehabilitation of hearing disorder | Hans Leysieffer, Hans-Peter Zenner | 2003-05-20 |
| 6227204 | Device and process for charging of rechargeable batteries of implants | Hans Leysieffer, Andreas Volz | 2001-05-08 |
| 6143440 | Protective device for a repeatedly rechargeable electrochemical battery | Andreas Volz, Klaus Bodganowitz, Hans Leysieffer, Dieter Muller, Gerd Muller | 2000-11-07 |
| 5999632 | Fixation element for an implantable microphone | Hans Leysieffer, Rolf Lehner, Gerd Muller, Gabriele Reischl | 1999-12-07 |
| 5279292 | Charging system for implantable hearing aids and tinnitus maskers | Hans Leysieffer, Guenter Hortmann | 1994-01-18 |
| 5277694 | Electromechanical transducer for implantable hearing aids | Hans Leysieffer, Guenter Hortmann | 1994-01-11 |