Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10710843 | Car door interlock with sill lock | Michael J. Tracey | 2020-07-14 |
| 10569994 | Monitoring system, elevator door system having monitoring system, and method | Michael J. Tracey | 2020-02-25 |