Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312321 | Method for direct hydrogenation of maleic anhydride to produce 1,4-butanediol and co-produce succinic anhydride | Juncheng Zhu, Zhigang Xu, Feike Wu, Zunliang Zhang | 2025-05-27 |
| 12121835 | Method for refining styrene by using combined falling film reboilers and heat pump technology to provide heat source of separation column | Jing Zhang, Jiahui Gu, Haiyan Zhou, Xia Chen, Zhigang Xu | 2024-10-22 |