Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11293254 | Expansion tool assembly for expandable tubular | Quanli Zhang, Depei Shi, Hongwei Yin, Huijuan Guo, Guodong Zhan +12 more | 2022-04-05 |
| 10858917 | Expandable liner hanger | Quanli Zhang, Hongwei Yin, Wanjun Li, Huijuan Guo, Guojun Liu +11 more | 2020-12-08 |
| 10641067 | Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology | Hongwei Yin, Huijuan Guo, Zhitong Liu, Mingjie Lv, Jianli Wang +6 more | 2020-05-05 |