Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7919946 | Detection method for an electrical polyphase machine | Martin Ehlich, Mario Mueller, Marc Sommer, Thomas Eutebach | 2011-04-05 |
| 7723940 | Non-redundant safety monitoring for an electric drive mechanism (with a sensor) | — | 2010-05-25 |
| 4970450 | Deriving rotational rate and angular position with a function generator | Heinz-Dietmar Karl, Jürgen Krietemeier | 1990-11-13 |
| 4890185 | Circuit for protecting a switching transistor | Heinz-Dietmar Karl, Josef Lackhove | 1989-12-26 |
| 4546301 | Circuit and method for controlling an alternating or three-phase current motor | Gustav Matthies, Heinz-Dietmar Karl | 1985-10-08 |