Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8026809 | Monitoring method and stationary unit for a motor-driven door | Dirk Schäfer | 2011-09-27 |
| 7466125 | Position transmitter and method for determining a position of a rotating shaft | Dirk Schäfer | 2008-12-16 |