Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10745605 | Plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof | Jingping Liu, Long Li, Dongyang Li, Wei Zhang, Lei Guo +1 more | 2020-08-18 |