Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11994011 | Permanent packer and extended gas lift method using permanent packer | Weilin Wang, Changqing Ye, Hao Tan, Hanbing Tang, Daogang Cai +8 more | 2024-05-28 |
| 11946349 | Downhole throttling device based on wireless control | Jun Xie, Jian Yang, Chenggang Yu, Yukun Fu, Qiang Yin +6 more | 2024-04-02 |
| 11112398 | Apparatus and method for determining volume stability of well cement | Fuyun Wang, Youzhi Zheng, Jie Li, Libin Jiao, Tao Yang +2 more | 2021-09-07 |
| 10928282 | Method and device for determining elasticity of cement stone utilized in well cementing of oil-gas well | Youzhi Zheng, Bo Kong, Jie Li, Yu SANG, Tao Yang +15 more | 2021-02-23 |