Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11453814 | Pressure-bearing plugging agent and preparation method and use thereof | Yang Bai, Lingfeng Wu, Pingya Luo, Haibo Liang, Wen Xu +4 more | 2022-09-27 |
| 11396621 | Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof | Yang Bai, Lingfeng Wu, Pingya Luo, Jinsheng Sun, Haibo Liang +4 more | 2022-07-26 |
| 11345841 | Fiber silica composite microsphere for shale stratum, drilling fluid and preparation method and use thereof | Yang Bai, Lingfeng Wu, Pingya Luo, Wenzhe Li, Feng-Wei Dai +3 more | 2022-05-31 |