Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6437274 | Hybrid circuit breaker | Max Claessens, Klaus-Dieter Weltmann, Leopold Ritzer | 2002-08-20 |
| 5254185 | Method for producing a surface-coated component, in particular a contact piece for a vacuum switch, and device for executing this method | — | 1993-10-19 |
| 4652709 | Gas blast switch | — | 1987-03-24 |
| 4556767 | Gas-blast circuit breaker | Walter Egli, Klaus Ragaller, Roland Stelzer | 1985-12-03 |
| 4486632 | High-voltage power switch | Lutz Niemeyer, Blaise Perrenoud, Klaus Ragaller, Rolf Schaumann | 1984-12-04 |
| 4414450 | High voltage power switch | Rudolf Moll, Klaus Ragaller | 1983-11-08 |
| 4286128 | Electric gas-switch | Stanislaus Ruffieux | 1981-08-25 |