Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199050 | Combined crushing super-variable-diameter drill bit for natural gas hydrate exploitation | Yang Tang, Xin Jing, Qingyou Liu, Shouwei Zhou, Xushen Li +9 more | 2021-12-14 |
| 11193333 | Automatic jet breaking tool for solid fluidization exploitation of natural gas hydrate | Yang Tang, Shunxiao Huang, Qingyou Liu, Shouwei Zhou, Xushen Li +10 more | 2021-12-07 |
| 11047183 | Coiled tubing drilling robot, robot system and process parameter control method thereof | Qingyou Liu, Haiyan ZHU, Jianguo Zhao | 2021-06-29 |
| D923886 | Pet nail clipper | — | 2021-06-29 |