YQ

Yifeng Qian

IN Inventec: 1 patents #521 of 1,270Top 45%
Overall (All Time): #3,629,420 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6128372 Extension device for telephone Hong-Chang Tsai, Yong Pan, Zhen-Xing Lai 2000-10-03