The number one toy in the United States, U.K., and Australia for years running, the LeapPad has helped over 100 million kids learn to read. In 2005, the LeapPad was in over 77% of American households with children between the ages of four and seven.
2015
MIT 150
US 9520069
US 7936339
US 7831933
US 7453447
US 6750978 B1