JM

Jianzhi Ma

Overall (All Time): #3,355,058 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7367890 Yoke-trunnion universal joint without needle bearings Jianqun Zhou, Guohui Sun, Hongzheng Shao, Jun Wu 2008-05-06