Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344317 | Electrically powered appliance for oral hygiene | Gustav Gassner, Gottfried Voigt, Peter Hilfinger | 1994-09-06 |
| 4894813 | Alarm shut-off device, with a wake up signal delivering integrated circuit and a receiving and signal shaping network | Heinz Schiebelhuth | 1990-01-16 |
| 4415273 | Microprocessor driven digital display alarm clock | Harald Hoffman, Peter Busch, Dan-Corneliu Raducanu | 1983-11-15 |