Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5883502 | Power rectifier circuit | — | 1999-03-16 |
| 4845413 | Device for controlling the field current of DC motors | Franz Hackl, Franz Wohrer | 1989-07-04 |
| 4493015 | Circuit arrangement for determining the load current in a reversible d-c controller or chopper | Franz Ramlohr | 1985-01-08 |