Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8623791 | Copolymer and preparation method and application thereof | Xiaohua Yang, Lin Wang, Xiaolin Qian, Xianguang Wang, Sheng Li +5 more | 2014-01-07 |
| 7323434 | Electropositive production well treating fluid and method of preparing the same | Changming Su, Rushan Liu, Weiping Xu, Zengchen Guan, Peizhi Yu +5 more | 2008-01-29 |