Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11324827 | Multifunctionalized polyethylene glycol derivative and preparation method therefor | Wengui WENG, Chao Liu, Ce Yan, Shaofeng Wu | 2022-05-10 |
| 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 |
| 10434182 | Eight-arm polyethylene glycol derivative, production method therefor, and modified bio-related substance thereof | Wengui WENG, Chao Liu, Ce Yan, Huihuang Su | 2019-10-08 |
| 10280357 | High density and high temperature emulsifier for use in an oil based drilling fluid system | Fuchen Liu, Zhenzhou Yang | 2019-05-07 |
| 9909050 | High density and high temperature emulsifier for use in an oil based drilling fluid system | Fuchen Liu, Zhenzhou Yang | 2018-03-06 |
| 9533385 | Flat heat pipe and method of manufacturing the same | Chien-Hung Sun | 2017-01-03 |
| 9515907 | Monitoring method of monitoring module | — | 2016-12-06 |