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Jerome Lemelson Princeton Winner of a record setting patent infringement suit against Mattel, Inc. for the flexible track used in "Hot Wheels," Jerome Lemelson holds more than 450 patents, more than any other living American. His patents include inexpensive portable telephones, the drive mechanism for cassette tape players, the multiple video terminal system used in computers, television security systems, computer controlled plastic extrusion and injection molding systems, direct numerical control of machine tools, and educational toys and games. The critical dimensions of the tiles on the Space Shuttle are measured by a computer-controlled system that relies on one of his patents, and the Sony Corporation uses his audio cassette patents to manufacture its Walkman.