LM

L. Marggraff

LE Leapfrog Enterprises: 2 patents #35 of 105Top 35%
Overall (All Time): #2,164,123 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7120385 Write on interactive apparatus and method 2006-10-10
6985139 Interactive apparatus using print media Mark Flowers 2006-01-10