Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5034675 | Polyphase machine fed by a pulse-controlled a.c. converter | Georg Nerowski, Bernhard Piepenbreier | 1991-07-23 |
| 4924370 | Low-loss and low-reactive power switching relief device for the semiconductor switches of an inverter | — | 1990-05-08 |
| 4906911 | Electrical machine driven by a pulse-controlled a.c. converter | Georg Nerowski, Bernhard Piepenbreier | 1990-03-06 |
| 4890181 | Short-circuit protection device for an electrical machine fed by a pulse-controlled A.C. converter | Georg Nerowski, Bernhard Piepenbreier | 1989-12-26 |