Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371210 | Elevator safety system having multiple buses | Shari R. Parillo, Paul C. Hoppie, Robert Mazzamauro, Ronnie E. Thebeau, Leslie C. Watterson +1 more | 2016-06-21 |
| 8459415 | Elevator motion profile control including non-instantaneous transition between jerk values | YiSug Kwon, Daryl J. Marvin, Randall Keith Roberts | 2013-06-11 |
| 6701277 | Elevator car position sensing system | Jason S. Stone, Julian H. Shull Jr., Richard A. Schafer, Kim Ngoc Trinh, William G. Edgar +1 more | 2004-03-02 |
| 6526368 | Elevator car position sensing system | Jason S. Stone, Julian H. Shull, D. Richard Schafer, Kim Ngoc Trinh, William G. Edgar +1 more | 2003-02-25 |
| 6082498 | Normal thermal stopping device with non-critical vane spacing | Sally Day Mahoney | 2000-07-04 |
| 6032761 | Elevator hoistway terminal zone position checkpoint detection apparatus using a binary coding method for an emergency terminal speed limiting device | August J. Dobler | 2000-03-07 |
| 5747755 | Elevator position compensation system | Jeff Izard | 1998-05-05 |
| 5107964 | Separate elevator door chain | Eric K. Jamieson | 1992-04-28 |
| 4750591 | Elevator car door and motion sequence monitoring apparatus and method | Gregory A. Schienda | 1988-06-14 |
| 4520904 | Elevator leveling signal error and correction | David Rado | 1985-06-04 |