Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417472 | Vacuum switching chamber having an annular insulator | Roman Renz, Klemens Fieberg | 2002-07-09 |
| 5847347 | Vacuum interrupter | Wolfgang Schwarze, Klaus Oberndorfer | 1998-12-08 |
| 5661281 | Vacuum-type interrupter having an annular insulator | Klemens Fieberg, Roman Renz, Klaus Oberndorfer | 1997-08-26 |