Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136488 | Biodiesel-based constant rheological property drilling fluid containing intelligent temperature responsive polymer | Guancheng Jiang, He Shi, Kaixiao Cui, Yinbo He, Lili Yang +7 more | 2021-10-05 |
| 11034876 | Calcium-resistant zwitterionic polymer, preparation method and application thereof, and water-based drilling fluid containing polymer as dispersant | Yinbo He, Guancheng Jiang, Tengfei Dong, Lili Yang, Wuquan Li +6 more | 2021-06-15 |