Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11155512 | Method and system for refining long chain dicarboxylic acid | Chen Yang, Yufeng Yang, Kai Wang, Xiucai Liu | 2021-10-26 |
| 11008279 | Method for purifying 1,5-pentanediamine and the 1,5-pentanediamine prepared thereby | Charlie Liu, Shanshi Guo, Benliang Hou, Xiucai Liu | 2021-05-18 |