Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6384554 | Drive circuit for brushless DC motors | Arno Karwath, Eberhard Wunsch | 2002-05-07 |
| 5717297 | Drive circuit for brushless DC motors | Arno Karwath, Eberhard Wunsch | 1998-02-10 |
| 5600216 | Bridge circuit for driving a brushless DC motor | Arno Karwath | 1997-02-04 |
| 5598073 | Drive circuit for a brushless direct-current motor | Helmut Hans | 1997-01-28 |
| 5589745 | Drive circuit for a brushless direct-current motor | Helmut Hans | 1996-12-31 |
| 5583404 | Drive circuit for brushless DC motors | Arno Karwath, Eberhard Wunsch | 1996-12-10 |
| 5343129 | Drive circuit for a brushless direct-current motor | Helmut Hans | 1994-08-30 |
| 5220258 | Drive circuit for a brushless direct-current motor | Helmut Hans | 1993-06-15 |