PY

Po Man Yuen

LR Learning Resources: 1 patents #13 of 25Top 55%
Overall (All Time): #1,580,836 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7351062 Educational devices, systems and methods using optical character recognition Gayle E. Gordon, Victor Kwok-ho Ng, Barbara Plain 2008-04-01
6129606 Action mechanism toy or amusement device 2000-10-10
6123600 Motor driven surface engaging multi-directional and surface translating amusement device 2000-09-26