Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10927612 | Downhole auxiliary drilling apparatus | Yijin Zeng, Qunai Hu, Chenxi Zhao, Jianjun Zhao, Lanrong Ma +3 more | 2021-02-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10927612 | Downhole auxiliary drilling apparatus | Yijin Zeng, Qunai Hu, Chenxi Zhao, Jianjun Zhao, Lanrong Ma +3 more | 2021-02-23 |