Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11396777 | Rotary steering drilling apparatus | Qingyun Di, Qingbo Liu, Yongyou Yang, Linfeng Hong, Xiangyang Wang | 2022-07-26 |
| 11306539 | Executing mechanism for rotary guide device and rotary guide device | Qingbo Liu, Qingyun Di, Yongyou Yang, Xiangyang Wang | 2022-04-19 |
| 11306540 | Push type rotary guide drilling system | Qingbo Liu, Qingyun Di, Xiangyang Wang, Yongyou Yang, Xinzhen He | 2022-04-19 |