Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5747755 | Elevator position compensation system | Steven D. Coste | 1998-05-05 |
| 5387768 | Elevator passenger detector and door control system which masks portions of a hall image to determine motion and court passengers | Francois M. Mottier | 1995-02-07 |