Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11325809 | Monitoring roller guide health | John Ferrisi | 2022-05-10 |
| 11066276 | Enhanced door detection | Walter Thomas Schmidt, Goran Djuknic | 2021-07-20 |
| 10837215 | Zone object detection system for elevator system | Walter Thomas Schmidt, Enrico Manes, Michael J. Tracey | 2020-11-17 |
| 9802788 | Elevator security system including a credential transmitted to a user | Natsuki Miyajima, Muneo Ikeda | 2017-10-31 |