Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5052523 | Elevator car-mounted govenor system | — | 1991-10-01 |
| 5002158 | Elevator safety | William G. Sheridan | 1991-03-26 |
| 4848519 | Structural support for hydraulic elevator car | Jaime A. Rivera | 1989-07-18 |
| 4462193 | Elevator cab | — | 1984-07-31 |
| 4430835 | Elevator cab | — | 1984-02-14 |