Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732570 | Apparatus for tripping oil pipe and system for automatic well workover | Guangqi Gao, Lei Zhang, Huihui Song, Zeng Fu, Hui Zhang +6 more | 2017-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732570 | Apparatus for tripping oil pipe and system for automatic well workover | Guangqi Gao, Lei Zhang, Huihui Song, Zeng Fu, Hui Zhang +6 more | 2017-08-15 |