Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9365394 | Electronic wire bridge with safety circuit | Edward Nowel | 2016-06-14 |
| 4784240 | Method for using door cycle time in dispatching elevator cars | Robert C. MacDonald, Elsa Abrego, Matthew Martin, Jon Jay Howard, Marjorie J. Polis +1 more | 1988-11-15 |