QC

Qingfeng Cheng

Overall (All Time): #2,908,206 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10072899 Spiral louver shaped condenser with multilayer spatial structure Xiangqi Gao, Jinfa Zhang, Baojia Kang, Zhouzheng Han, Song Zhang +3 more 2018-09-11