Issued Patents All Time
Showing 151–153 of 153 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149766 | Process for the preparation of uretdione group containing polyisocyanates | — | 1992-09-22 |
| 4918269 | Gas-blast circuit breaker | Christoph Roehling | 1990-04-17 |
| 4831220 | High-voltage compressed-gas circuit breaker | Dieter Noack, Michael Punger | 1989-05-16 |