KK

Ken Kung

IN Inventec: 1 patents #521 of 1,270Top 45%
Overall (All Time): #3,406,092 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6990476 Story interactive grammar teaching system and method Sayling Wen, Zechary Chang 2006-01-24