Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11629282 | Salt-tolerant polymer microsphere plugging agent and preparation method thereof | Guiru Liu, Lei Wang, Jinhao Gao, Xiaohu Liu, Zhiqiang Dang +2 more | 2023-04-18 |
| 11384282 | One-component type multi-functional fracturing fluid additive and process for preparing the same | Meiling Fan, Lei Wang, Xingen Feng, Weibo Liu, Peng Li +1 more | 2022-07-12 |
| 10781165 | pH-responsive amphoteric surfactant n-lauryl-(α-alkyl)-β-aminopropionic acid and preparation method and uses thereof | Zhiqiang Dang, Lei Wang, Shaoyun Ma, Xianwen Li, Wei Tian +3 more | 2020-09-22 |