Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837235 | Hybrid rotary guiding device | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du +3 more | 2020-11-17 |
| 10830037 | Constant amplitude adjusting method and system for pressure pulse of drilling tool | Jiansheng Du, Qingyun Di, Zili Wang, Wenxuan Chen, Yongyou Yang | 2020-11-10 |
| 10815730 | Anti-rotating device of non-rotating sleeve and a rotary guiding device | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du +3 more | 2020-10-27 |
| 10693268 | Conductive slip ring for logging while drilling instrument | Qingyun Di, Wenxuan Chen, Jiansheng Du, Qingbo Liu | 2020-06-23 |
| 10619478 | Device for power transmission and signal transfer between stator and rotor of screw drilling tool | Qingyun Di, Wenxuan Chen, Jiansheng Du, Qingbo Liu, Yongyou Yang | 2020-04-14 |