Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4751984 | Dynamically generated adaptive elevator velocity profile | Walter L. Williams, Arnold Mendelsohn | 1988-06-21 |
| 4674605 | Automatic elevator load sensor calibration system | — | 1987-06-23 |