Notable Inventions of the 1910s
1910: Thermojet engine: Henri Coandă
1911: Gyrocompass: Elmer A. Sperry
1911: Automobile self starter (perfected): Charles F. Kettering
1911: Air conditioner: Willis Haviland Carrier
1911: Cellophane: Jacques Brandenburger
1911: Hydroplane: Glenn Curtiss
1912: Ecstasy: Merck
1912: Photography ;Lapse-time camera for use with plants:Arthur C. Pillsbury
1912: Regenerative radio circuit: Edwin H. Armstrong
1913: Cracking process for Gasoline: William M. Burten
1913: Crossword: Arthur Wynne
1913: Double acting wrench: Robert Owen
1913: Gyroscope stabilizer: Elmer A. Sperry
1913: Radio receiver, cascade tuning: Ernst Alexanderson
1913: Radio receiver, heterodyne: Reginald Fessenden
1913: Stainless steel: Harry Brearley
1913: X-Ray (improved): William D. Coolidge
1914: Radio transmitter triode mod.: Ernst Alexanderson
1914: Liquid fuel rocket: Robert Goddard
1914: Tank, military: Ernest Dunlop Swinton
1915: Tungsten Filament: Irving Langmuir
1915: Searchlight arc: Elmer A. Sperry
1915: Radio tube oscillator: Lee DeForest
1915: Pyrex: Corning Inc.
1916: Browning Gun: John Browning
1916: Thompson submachine gun: John T. Thompson
1916: Incandescent gas lamp: Irving Langmuir
1917: Sonar echolocation: Paul Langevin
1917: Cruise missile: Charles Kettering
1918: Superheterodyne receiver: Edwin H. Armstrong
1918: Interrupter gear: Anton Fokker
1918: Radio crystal oscillator: A.M. Nicolson
1918: Pop-up toaster: Charles Strite
1919: Flip-flop circuit: William Eccles and F. W. Jordan
1919: Theremin: Leon Theremin