CT

Charles Thaeler

LE Leapfrog Enterprises: 1 patents #61 of 105Top 60%
Overall (All Time): #1,548,865 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8099312 Project management system and method Yan Jin, John R. Kunz, Raymond Levitt, Marc C. Ramsey, Carlos Rivero 2012-01-17
7483841 Project management system and method Yan Jin, John R. Kunz, Raymond Levitt, Marc C. Ramsey, Carlos Rivero 2009-01-27
7281664 Method and system for hierarchical management of a plurality of regions of an encoded surface used by a pen computer Peter Van Horn 2007-10-16