Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11603290 | Elevator door interlock assembly | Yunyi Wang | 2023-03-14 |
| 11155444 | Elevator door interlock assembly | Yunyi Wang | 2021-10-26 |
| 10322910 | Elevator door coupler assembly | — | 2019-06-18 |