Issued Patents All Time
Showing 51–75 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10830037 | Constant amplitude adjusting method and system for pressure pulse of drilling tool | Jiansheng Du, Zili Wang, Wenxuan Chen, Xinzhen He, Yongyou Yang | 2020-11-10 |
| 10823872 | Correction method for transient electromagnetic method-based prediction of water-bearing structure ahead of tunnel wall | Guoqiang Xue, Xiu Li, Bin LIU, Huaifeng Sun, Dongyang Hou | 2020-11-03 |
| 10815730 | Anti-rotating device of non-rotating sleeve and a rotary guiding device | Qingbo Liu, Tsili Wang, Wenxuan Chen, Jiansheng Du, Yongyou Yang +3 more | 2020-10-27 |
| 10809412 | WEM-based method for deep resource detection using sky waves | Guoqiang Xue, Ruo Wang, Zhiguo An, Changmin Fu, Da Lei +2 more | 2020-10-20 |
| 10746894 | Magnetotelluric measurement system | Zhongxing Wang, Tianxin Zhang, Fei Tian, Yongyou Yang, Wenxiu Zhang +1 more | 2020-08-18 |
| 10746756 | Dynamic testing device suitable for drilling tool attitude measurement module | Wenxiu Zhang, Yongyou Yang, Jian Zheng, Yuntao Sun, Wenxuan Chen +1 more | 2020-08-18 |
| 10697826 | Magnetic field based micro-vibration measurement device and measuring method thereof | Shuquan Sun, Aimin Du, Lin Zhao, Heng Tang, Qiong Li +2 more | 2020-06-30 |
| 10693268 | Conductive slip ring for logging while drilling instrument | Xinzhen He, 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 | Xinzhen He, Wenxuan Chen, Jiansheng Du, Qingbo Liu, Yongyou Yang | 2020-04-14 |
| 10612372 | Azimuthal acoustic logging while drilling apparatus and measurement method | Wenxiu Zhang, Wenxuan Chen, Jian Zheng, Yuntao Sun, Yongyou Yang | 2020-04-07 |
| 10578754 | Sinusoidal excitation method and apparatus for multi-pole acoustic logging while drilling | Yuntao Sun, Zili Wang, Wenxuan Chen, Wenxiu Zhang, Yongyou Yang +1 more | 2020-03-03 |
| 10488544 | Method, apparatus and system for arranging survey points in field operation with ground electromagnetic instrument | Yongyou Yang, Zhongxing Wang, Tianxin Zhang, Renzhong Pei, Wenxiu Zhang | 2019-11-26 |
| 10443307 | Rotary steerable drilling tool and method of control thereof | Jiansheng Du, 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 | Jiansheng Du, Zili Wang, Wenxuan Chen | 2019-10-08 |
| 10429539 | Method and system for control and data processing in field operation with ground electromagnetic instrument | Zhongxing Wang, Tianxin Zhang, Renzhong Pei, Yongyou Yang | 2019-10-01 |
| 10428646 | Apparatus for downhole near-bit wireless transmission | Jian Zheng, Wenxuan Chen, Yuntao Sun, Yongyou Yang, Wenxiu Zhang | 2019-10-01 |
| 10379238 | Integral packaging device for acoustic receiving transducers while drilling | Jian Zheng, Wenxuan Chen, Zili Wang, Yuntao Sun, Yongyou Yang +1 more | 2019-08-13 |
| 10364670 | Azimuthally acoustic imaging logging while drilling (LWD) apparatus | Jian Zheng, Wenxuan Chen, Zili Wang, Yuntao Sun, Yongyou Yang +1 more | 2019-07-30 |
| 10329906 | Acoustic source testing apparatus of azimuthally acoustic logging while drilling (LWD) instrument | Jian Zheng, Zili Wang, Wenxuan Chen, Yuntao Sun, Yongyou Yang +1 more | 2019-06-25 |
| 10202841 | Near-bit tool attitude measurement while drilling apparatus and method | Wenxiu Zhang, Wenxuan Chen, Yongyou Yang, Yuntao Sun, Jian Zheng +1 more | 2019-02-12 |
| 10186957 | Soft-switching control circuit of boost-type PFC converter | Qihui Zhen | 2019-01-22 |
| 10168432 | Distributed electromagnetic instrument synchronization system and method | Yongyou Yang, Zhongxing Wang, Wenxiu Zhang, Binbin Chen, Renzhong Pei +1 more | 2019-01-01 |
| 10120795 | Wear-leveling nandflash memory reading/writing method | Yongyou Yang, Wenxuan Chen, Wenxiu Zhang, Yuntao Sun, Jian Zheng | 2018-11-06 |
| 10082021 | Azimuthally acoustic while drilling signal receiving transducer encapsulating apparatus | Jian Zheng, Wenxuan Chen, Yuntao Sun, Yongyou Yang, Wenxiu Zhang | 2018-09-25 |
| 10030504 | Receiving apparatus suitable for azimuthally acoustic logging while drilling | Jian Zheng, Wenxuan Chen, Wenxiu Zhang, Yuntao Sun, Yongyou Yang | 2018-07-24 |