Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12091293 | Main hoist system of rotary drilling rig, and control method therefor | Yonghua Zhang, Yu-Chen Sun, Zhigang Liu, Changmeng Shan, Hongchen Qiu +3 more | 2024-09-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12091293 | Main hoist system of rotary drilling rig, and control method therefor | Yonghua Zhang, Yu-Chen Sun, Zhigang Liu, Changmeng Shan, Hongchen Qiu +3 more | 2024-09-17 |