Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11492232 | Elevator balance weight rescue device, an elevator and an elevator balance weight rescue method | Qing Li, Kai Kang, Hebin Bai, Jianjia Li | 2022-11-08 |
| 11358833 | Guide device and elevator system | Qing Li, Kai Kang, Bai Hebin | 2022-06-14 |
| 11142431 | Stabilizing device of elevator car and a control method thereof, an elevator system | Qing Li, Kai Kang, Xiaokai Gong, XiaoBin Tang, ZhengZong Tang +1 more | 2021-10-12 |