Issued Patents 2021
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11098579 | Electrode type near bit wireless short distance transmission modulation method and apparatus | Yuntao Sun, Qingyun Di, Jian Zheng, Wenxiu Zhang | 2021-08-24 |
| 11047226 | Fluid pressure measuring device for measurement-while-drilling tool | Jiansheng Du, Qingyun Di, Zili Wang, Xinzhen He, Yongyou Yang | 2021-06-29 |
| 11029434 | Method for acquiring data of azimuthal acoustic logging while drilling | Qingyun Di, Wenxiu Zhang, Zili Wang, Yuntao Sun, Jian Zheng +1 more | 2021-06-08 |
| 11021911 | Rotary guiding device based on radial driving force | Qingbo Liu, Qingyun Di, Tsili Wang, Jiansheng Du, Yongyou Yang +3 more | 2021-06-01 |
| 11018648 | Sonic logging broadband impedance matching transformer modular design method and module | Xin Fu, Yuntao Sun, Yang Gou, Fuqiang Wei | 2021-05-25 |
| 11002128 | Gravity acceleration measurement apparatus and extraction method in a rotating state | Wenxiu Zhang, Qingyun Di, Jianguang Liu, Yuntao Sun, Yongyou Yang +1 more | 2021-05-11 |
| 10975689 | Near bit wireless constant current short distance transmission method and device | Yuntao Sun, Qingyun Di, Jian Zheng, Wenxiu Zhang | 2021-04-13 |
| 10928530 | Method for synchronizing acoustic asynchronous serial signals while drilling | Fuqiang Wei, Yuntao Sun, Wenxiu Zhang, Jian Zheng | 2021-02-23 |