Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693919 | Evacuation system for elevators | Patrick Chenais | 1997-12-02 |
| 5433293 | Vertical-horizontal passenger conveying system | — | 1995-07-18 |
| 5005671 | Apparatus for damping oscillations in elevator cars | Michel Aime | 1991-04-09 |