Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12134730 | Asphalt-like material and preparation method and use thereof as plugging agent, and water-based drilling fluid | Mingbiao Xu, Fuchang You, Kai JIAO | 2024-11-05 |
| 11834387 | Quaternary ammonium salt and preparation method and use thereof as inhibitor, and water-based drilling fluid and use thereof | Mingbiao Xu, Fuchang You, Kai JIAO | 2023-12-05 |
| 11787893 | Polyaspartic acid derivative and preparation method and use thereof as lubricant, and water-based drilling fluid and use thereof | Fuchang You, Mingbiao Xu, Kai JIAO | 2023-10-17 |