SF

Shuangjie Feng

CE China Enfi Engineering: 2 patents #3 of 48Top 7%
Overall (All Time): #1,934,837 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10443112 Fuming furnace with lead collecting and discharging function Dawei Cui, Kefei Cao, Chuangu Wu, Xin Xu, Zhenmin Zhang 2019-10-15
10260815 Lance and multi-fluid lance device equipped with the same Liqiong Hu, Zhenmin Zhang, Rangxian Zhu, Linsheng Wang, Dong Li +1 more 2019-04-16