Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9945083 | Unidirectional bend drive chain and lift mechanism and boom barrier including same | Mansheng Dong, Chao Zhang, Qin Shi, Yikai Chen, Zhibin Sun +2 more | 2018-04-17 |
| 9057464 | Threaded pipe connector | Bao Zhang | 2015-06-16 |
| 7708825 | Sialite binary wet cement, its production method and usage method | Henghu Sun, Weirui Xu, Guangju Gai | 2010-05-04 |
| 5961712 | Method for making shotcrete and such compositions | Henghu Sun, Weirui Xu | 1999-10-05 |