Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5508497 | Method for open-loop/closed-loop control of at least two parallel oscillating circuit inverters feeding induction furnaces | Robert Ibach | 1996-04-16 |
| 5475582 | Stepless control of a load guided parallel resonant inverter | Robert Ibach | 1995-12-12 |
| 4942494 | Short-circuit protector for a half-controlled three-phase bridge | Robert Ibach, Georg Gierse | 1990-07-17 |
| 4941077 | Configuration for starting an inverter | Robert Ibach | 1990-07-10 |