Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5651528 | Vacuum valve | Hugo Frei, Peter Keller | 1997-07-29 |
| 5583297 | Process for evaluating the output signals of two pressure sensors and a pressure measuring arrangement with two pressure measuring sensors and a pressure measuring head | Rudolf Stocker, Armin Stoeckli | 1996-12-10 |
| 4944245 | Crucible cover for coating installation with an electron beam source | Wilfried Stoessl, Christian Beusch, Peter Niggli | 1990-07-31 |