Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5833212 | Vacuum valve | Peter Keller | 1998-11-10 |
| 5651528 | Vacuum valve | Peter Keller, Martin Boesch | 1997-07-29 |
| 5384018 | Process and apparatus for generating and igniting a low-voltage | Jurgen Ramm, Eugen Beck, Albert Zueger, Gunter Peter | 1995-01-24 |