Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4906935 | Method and equipment for vacuum monitoring in vacuum switching tubes | Ruediger Hess, Wilfried Kuhl, Wolfgang Schilling, Peter Trentin, Heribert Weber +2 more | 1990-03-06 |
| 4672323 | Device for measuring the internal pressure of an operationally built built-in vacuum switch | Wilfried Kuhl, Bernd Rost, Wolfgang Schilling | 1987-06-09 |