Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11873444 | Nanographene and preparation method and use thereof and oil-based drilling fluid | Yang Bai, Ren Wang, Gang Xie, Danchao Huang, Wenzhe Li +4 more | 2024-01-16 |
| 11542425 | Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof | Yang Bai, Lingfeng Wu, Jing Zhang, Wenzhe Li, Pingya Luo +4 more | 2023-01-03 |
| 11485896 | Oil-based drilling fluid composition, oil-based drilling fluid and preparation method and use thereof | Yang Bai, Pingya Luo, Wen Xu, Wenzhe Li, Lingfeng Wu +3 more | 2022-11-01 |
| 11441062 | Modified polyvinyl acetate and preparation method and use thereof and oil-based drilling fluid | Yang Bai, Chunyan Liu, Pingya Luo, Gang Xie, Danchao Huang +3 more | 2022-09-13 |