Issued Patents 2020
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10829680 | High density and high temperature emulsifier for use in an oil based drilling fluid system | Fuchen Liu, Zhenzhou Yang | 2020-11-10 |
| 10787602 | Shale inhibitors used in the water-based fluid for shale formation | Fuchen Liu, Yonggui Liu, Xingdong Yu | 2020-09-29 |
| 10723929 | Thinner for oil-based drilling fluids | Jiancheng Li, Burhan Hoxha, Stephanie Yu | 2020-07-28 |
| 10723931 | Thinner for oil-based drilling fluids | Fuchen Liu, Burhan Hoxha | 2020-07-28 |
| 10660969 | Eight-arm polyethylene glycol derivative, production method therefor, and modified bio-related substance thereof | Wengui WENG, Chao Liu, Ce Yan, Huihuang Su | 2020-05-26 |