Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11673857 | Preparation method of 1-(4-aminophenyl)cyclopentanecarbonitrile | Na Zhang, Qiuhong Zhang | 2023-06-13 |
| 9527801 | Process and device for recycling waste acid produced in process of producing zoalene | Fei Shi, Jianhua Chen, Na Zhang | 2016-12-27 |