Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12330910 | Elevator switch adapter | Nelson Alonso | 2025-06-17 |
| 10793396 | Elevator car door interlock | Nelson Alonso | 2020-10-06 |
| 9688515 | Elevator car door interlock | Nelson Alonso | 2017-06-27 |