Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10759631 | Remote triggering device, overspeed governor assembly and elevator | Zhengbao Shi, Randall S. Dube, Min Wang | 2020-09-01 |
| 10745245 | Governor assembly and elevator | Zhengbao Shi, Randall S. Dube, Min Wang, Zhihuan Man, Ye Li | 2020-08-18 |