Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |