Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11702317 | Force application assembly, elevator and method of elevator rescue | Yunkang Shi, Zhenyan Tong, Wei-Chung Wang | 2023-07-18 |
| 10759631 | Remote triggering device, overspeed governor assembly and elevator | Zhengbao Shi, Randall S. Dube, Yong Zhao | 2020-09-01 |
| 10745245 | Governor assembly and elevator | Zhengbao Shi, Randall S. Dube, Yong Zhao, Zhihuan Man, Ye Li | 2020-08-18 |
| 10442661 | Governor of elevator | Zhengbao Shi, Zhihuan Man, Yong Zhao, Ye Li | 2019-10-15 |
| 10407278 | Safety device for elevators | Lifeng Zhang, James M. Draper, Byeongsam Yoo | 2019-09-10 |