Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11479449 | Vertical lifting device and method | Ziming Kou, Guijun Gao, Jing Zhang, Haiqing Wang, Xueliang Wei | 2022-10-25 |
| 10330213 | Electromechanical-linkage hydraulic control gate valve actuator | Ziming Kou, Guijun Gao, Yanfei Kou, Jing Zhang, Hao Qin +3 more | 2019-06-25 |