Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8042393 | Arrangement for measuring a rate of rotation using a vibration sensor | Volker Kempe, Drago Strle | 2011-10-25 |
| 6401533 | Level indicator | Werner Wallrafen | 2002-06-11 |
| 6311572 | Displacement sensor | — | 2001-11-06 |
| 5969594 | Device for indicating the level of the axle of a vehicle | Werner Wallrafen | 1999-10-19 |
| 5798640 | Passive magnetic position sensor | Bernd Osterle, Rudolf Borchert, Wolfgang Porth, Sabine Stark, Werner Wallrafen | 1998-08-25 |