Issued Patents 2024
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952860 | Staged cementing device and staged cementing method | Jinli Qin, Yang Liu, Wujun Chen, Zhaohui Guo, Yanjun Zeng +4 more | 2024-04-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952860 | Staged cementing device and staged cementing method | Jinli Qin, Yang Liu, Wujun Chen, Zhaohui Guo, Yanjun Zeng +4 more | 2024-04-09 |