Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11772937 | Elevator car door control system | Matthew Perillo, Stephen Bosshart, Andrew Goodwin | 2023-10-03 |
| 11731858 | Elevator door roller and track replacement | Bismark J. Aldana, Andrew Goodwin | 2023-08-22 |
| 11623846 | Elevator door roller and track replacement | Bismark J. Aldana, Andrew Goodwin | 2023-04-11 |