Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8742000 | Preparation method of hot dip galvanized sheet anti-corrosive treatment agent of environmental protective | Zhefeng Xu, Dongsheng Mei, Quan Xu, Yong Chen, Xingde Cheng +2 more | 2014-06-03 |
| 8728628 | Passivant for hot-dip Al-Zn-coated sheet and preparation method and use thereof | Ping Yuan, Quan Xu, Dan Yu, Yong Zhang, Zhefeng Xu +1 more | 2014-05-20 |