Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11843204 | Signal processing circuit, contactless connector, signal processing method and storage medium | Qijun Xie, Yongyou Yang, Qingbo Liu, Qingyun Di | 2023-12-12 |
| 11601164 | Contactless connector, signal processing method and storage medium | Qijun Xie, Yongyou Yang, Qingbo Liu, Qingyun Di | 2023-03-07 |
| 11396777 | Rotary steering drilling apparatus | Qijun Xie, Qingyun Di, Qingbo Liu, Yongyou Yang, Xiangyang Wang | 2022-07-26 |
| 11021911 | Rotary guiding device based on radial driving force | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du +3 more | 2021-06-01 |
| 10851647 | Downhole vibration and impact data recording method | Zhongxing Wang, Yongyou Yang, Qingyun Di, Zili Wang, Wenxuan Chen +2 more | 2020-12-01 |
| 10837235 | Hybrid rotary guiding device | Qingbo Liu, Qingyun Di, Tsili Wang, Wenxuan Chen, Jiansheng Du +3 more | 2020-11-17 |
| 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 |