Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11913324 | Downhole multidimensional imaging feature extraction method and imaging apparatus | Wei Zhang, Weining Ni, Xin Li, Lipeng Yan, Jinping Wu +4 more | 2024-02-27 |
| 10927612 | Downhole auxiliary drilling apparatus | Qunai Hu, Chenxi Zhao, Xiaojie Cui, Jianjun Zhao, Lanrong Ma +3 more | 2021-02-23 |
| 10571596 | Resistivity measurement while drilling device and method | Weining Ni, Xin Li, Wei Zhang, Jintai Mi, Jianhua Liu +6 more | 2020-02-25 |
| 9739141 | Data transmission system and method for transmission of downhole measurement-while-drilling data to ground | Wei Zhang, Jibo Li, Weining Ni, Huangsheng Lu, Sanguo Li +5 more | 2017-08-22 |
| 7426965 | Power transmission unit of an impactor, a hydraulic jet impactor and the application thereof | Xinghua Tao, Guoqiang Xu, Xutian Hou | 2008-09-23 |
| 7158886 | Automatic control system and method for bottom hole pressure in the underbalance drilling | Xutian Hou, Chunguo Yang, Bingtang Gao, Caixuan Guo, Jianlong Zhang | 2007-01-02 |