Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9062161 | Method for preparing polymethylene polyphenyl polycarbamate | Haitao Liu, Jiaqiang Chen, Kaihua Zhang, Yan Cao | 2015-06-23 |
| 7968066 | Method for production of alkali metal chromates | Zuohu Li, Yi Zhang, Shili Zheng, Tao QI, Hongbin Xu +1 more | 2011-06-28 |