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Air Brake
George Westinghouse 1868
Air Conditioning
Willis Carrier 1911
Aircraft Autopilot
Elmer A. Sperry 1911
Barbed Wire
Joseph E. Glidden 1873
Fountain Pen
Lewis E. Waterman 1884
Frozen Food
Clarence Birdseye 1924
Gyrocompass
Elmer Sperry 1905
Liquid Fueled Rocket
Robert Goddard 1926
Measles Vaccine
John Enders and Thomas Peebles 1953
Microwave Oven
Percy Spencer 1947
Motion Pictures
Thomas A. Edison 1893
Sewing Machine
Elias Howe 1846
Spruce Based Chewing Gum
John Curtis 1848
Xerography
Chester Carlson 1938
Zipper
W.L. Judson 1891