Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12265191 | Method for carrier distortion compensation in MWD mud pulse telemetry | Jing Ou, Wenxiu Zhang, Xinzhen He, Xiaolong Li, Yuliang Wang | 2025-04-01 |
| 12241368 | Synchronization method for an MWD mud pulse telemetry system | Jing Ou, Wenxiu Zhang, Xinzhen He, Xiaolong Li, Yuliang Wang | 2025-03-04 |
| 11768139 | Alternating stress fatigue testing equipment | Renzhong Pei, Zhongxing Wang, Jian Zheng, Xinzhen He | 2023-09-26 |
| 11274542 | Self-adjusting damping vibration absorber for while-drilling instruments and adjusting method thereof | Xinzhen He, Qingyun Di | 2022-03-15 |
| 11047226 | Fluid pressure measuring device for measurement-while-drilling tool | Qingyun Di, Zili Wang, Wenxuan Chen, Xinzhen He, Yongyou Yang | 2021-06-29 |
| 11021911 | Rotary guiding device based on radial driving force | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Yongyou Yang +3 more | 2021-06-01 |
| 10837235 | Hybrid rotary guiding device | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Yongyou Yang +3 more | 2020-11-17 |
| 10830037 | Constant amplitude adjusting method and system for pressure pulse of drilling tool | Qingyun Di, Zili Wang, Wenxuan Chen, Xinzhen He, 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, Yongyou Yang +3 more | 2020-10-27 |
| 10693268 | Conductive slip ring for logging while drilling instrument | Xinzhen He, Qingyun Di, Wenxuan Chen, Qingbo Liu | 2020-06-23 |
| 10619478 | Device for power transmission and signal transfer between stator and rotor of screw drilling tool | Xinzhen He, Qingyun Di, Wenxuan Chen, Qingbo Liu, Yongyou Yang | 2020-04-14 |
| 10443307 | Rotary steerable drilling tool and method of control thereof | Qingyun Di, Zili Wang, Wenxuan Chen | 2019-10-15 |
| 10436009 | Apparatus for testing the function and performance of a rotary steerable tool in a horizontal or inclined state | Qingyun Di, Zili Wang, Wenxuan Chen | 2019-10-08 |