Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11492232 | Elevator balance weight rescue device, an elevator and an elevator balance weight rescue method | Kai Kang, ShengYu Wang, Hebin Bai, Jianjia Li | 2022-11-08 |
| 11358833 | Guide device and elevator system | Kai Kang, ShengYu Wang, Bai Hebin | 2022-06-14 |