Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10774256 | Star-shaped polyacrylamide copolymer and preparation method thereof and drilling fluid including the copolymer | Xuesong Xing, Peizhi Yu, Yu Wang, Bairu Xia, Ziming Wang | 2020-09-15 |