Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10571596 | Resistivity measurement while drilling device and method | Yijin Zeng, Weining Ni, Xin Li, Wei Zhang, Jintai Mi +6 more | 2020-02-25 |
| 9739141 | Data transmission system and method for transmission of downhole measurement-while-drilling data to ground | Yijin Zeng, Wei Zhang, Weining Ni, Huangsheng Lu, Sanguo Li +5 more | 2017-08-22 |