Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10858571 | High-temperature retarder suitable for oil and gas well cementation, preparation method thereof and cementing slurry | Chengwen Wang, Yucheng Xue, Wei Zhou, Ruihe Wang, Jinsheng Sun +1 more | 2020-12-08 |