Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5543598 | Switch having a vacuum interrupter | Henri Duffour, Philippe Goerend | 1996-08-06 |
| 5298702 | Pressure medium drive for closing and opening the contacts of a circuit-breaker | Henri Duffour, Philippe Goerend | 1994-03-29 |
| 4953726 | Electric vehicle coupling between two rail vehicles | — | 1990-09-04 |
| 4927035 | Automatic coupling for rail borne vehicles | Markus Geng | 1990-05-22 |