Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11299942 | Drilling machines and methods thereof | Chong Chen, Yu Tian, Aimin Tang, Hang Gao, Zhigang Li +2 more | 2022-04-12 |
| 11286731 | Pipe racking system | Ying Li, Xiaohu Li, Lin Wang, Xiaowu OU, Aimin Tang +2 more | 2022-03-29 |