Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264544 | Downhole traction system | Jianguo Zhao, Qingyou Liu, Haiyan ZHU, Min Wan, Guorong Wang +3 more | 2025-04-01 |
| 12110794 | Two-stage reverse-torque bent screw orientation tool | Qingyou Liu, Jianguo Zhao, Guorong Wang, Haiyan ZHU, Xuecheng Dong +3 more | 2024-10-08 |