Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12344795 | Biological and chemical composite blockage removing agent and preparation process and use thereof | Yong Meng, Yingcheng Li, Weidong Zhang, Ou Sha, Jun Jin +1 more | 2025-07-01 |
| 12180419 | Alkylaniline polyether benzenesulfonate and process of producing same | Yingcheng Li, Weidong Zhang, Ou Sha, Xinyue Wu, Jun Jin | 2024-12-31 |
| 12037541 | Anionic-cationic-nonionic surfactant, production and use thereof | Yingcheng Li, Songyuan Gu, Weidong Zhang, Ou Sha, Zhiqin Shen +2 more | 2024-07-16 |
| 11920083 | Surfactant composition, and manufacturing method and application of same | Yingcheng Li, Songyuan Gu, Weidong Zhang, Zhiqin Shen, Hengzhi Tang +1 more | 2024-03-05 |
| 11578253 | Surfactant composition, and manufacturing method and application of same | Yingcheng Li, Songyuan Gu, Weidong Zhang, Zhiqin Shen, Hengzhi Tang +1 more | 2023-02-14 |
| 11286416 | Surfactant composition and preparation method therefor and application thereof | Yingcheng Li, Songyuan Gu, Weidong Zhang, Ou Sha, Zhiqin Shen +2 more | 2022-03-29 |
| 11193055 | Surfactant composition and preparation method therefor and application thereof | Yingcheng Li, Songyuan Gu, Weidong Zhang, Ou Sha, Zhiqin Shen +2 more | 2021-12-07 |
| 11186764 | Anionic-cationic-nonionic surfactant, production and use thereof | Yingcheng Li, Songyuan Gu, Weidong Zhang, Ou Sha, Zhiqin Shen +2 more | 2021-11-30 |
| 10526528 | Surfactant composition and preparation method therefor and application thereof | Yingcheng Li, Songyuan Gu, Weidong Zhang, Ou Sha, Zhiqin Shen +2 more | 2020-01-07 |
| 10400156 | Anionic-cationic-nonionic surfactant, production and use thereof | Yingcheng Li, Songyuan Gu, Weidong Zhang, Ou Sha, Zhiqin Shen +2 more | 2019-09-03 |