Lizheng Cao

Huawei: 1 patents #8,196 of 15,535Top 55%

Overall (All Time): #3,339,203 of 4,157,543Top 85%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7609831	Method for implementing wide area Centrex	Haiyin Ma, Weijun Ma, Sheng Yi	2009-10-27