Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496786 | Method and apparatus for measuring a frequency datum | Hermann Rappenecker, Alexander Hahn | 2002-12-17 |
| 6091887 | Method and apparatus for controlling a physical parameter | Arno Karwath, Herman Rappenecker | 2000-07-18 |
| 6078152 | Bidirectional E.C. motor and method of operating the motor | Arno Karwath, Herman Rappenecker | 2000-06-20 |
| 5847523 | Method of limiting current in a DC motor and DC motor system for implementing said method | Hermann Rappenecker | 1998-12-08 |