Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6701277 | Elevator car position sensing system | Steven D. Coste, Julian H. Shull Jr., Richard A. Schafer, Kim Ngoc Trinh, William G. Edgar +1 more | 2004-03-02 | $182,501,000 |
| 6526368 | Elevator car position sensing system | Steven D. Coste, Julian H. Shull, D. Richard Schafer, Kim Ngoc Trinh, William G. Edgar +1 more | 2003-02-25 | $83,071,000 |
| 5719360 | Adjustable transfer floor | Anne R. Davis | 1998-02-17 | $31,233,000 |