LeapFrog LeapPad

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.

"Jim Marggraff has helped make learning easier for millions of children. Armed with MIT bachelor’s and master’s degrees in electrical engineering and computer science, Marggraff tackled geography education in the 1990s with a talking globe that pronounced the names of countries when the student tapped them. The business was acquired by LeapFrog Enterprises Inc., where Marggraff developed the popular LeapPad, which could read text from specially printed books, helping children learn to read."


MIT 150

Landmark patents

US 9520069

Method and system for providing content for learning appliances over an electronic communication medium

US 7936339

Method and system for invoking computer functionality by interaction with dynamically generated interface regions of a writing surface

US 7853193

Method and device for audibly instructing a user to interact with a function

US 7831933

Method and system for implementing a user interface for a device employing written graphical elements

US 7810730

Decoupled applications for printed materials

US 7557939

Print media information systems and methods

US 7453447

Interactive apparatus with recording and playback capability usable with encoded writing medium

US 7299971

Print media information systems and methods

US 7120385

Write on interactive apparatus and method

US 6985139

Interactive apparatus using print media

US 6801751

Interactive learning appliance

US 6750978 B1

Print Media Information System With A Portable Print Media Receiving Unit Assembly

US 6668156

Print media receiving unit including platform and print media