Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814944 | Reactive torque automatic balancing device for screw drilling tool, drilling string, and method | Menggang Li, Chengcheng Niu, Xiangyang Zhao, Lingling YU | 2023-11-14 |