Notable Inventions of the 1900s
Dates for inventions are often controversial. Inventions are often invented by several inventors around the same time, or may be invented in an impractical form many years before another inventor improves the invention into a practical form. Where there is ambiguity, the date of the first working version of the invention is used here.
1900: Rigid dirigible airship: Ferdinand Graf von Zeppelin
1900: Self-heating can
1900s: Microwave optics: Jagdish Chandra Bose
1901: Improved wireless transmitter: Reginald Fessenden
1901: Instant coffee by Sartori Kato
1901: Mercury vapor lamp: Peter C. Hewitt
1901: Disposable razor blade: King C. Gillette
1901: Vacuum cleaner: Hubert Booth
1902: Ostwald process: Wilhelm Ostwald
1902: Radio magnetic detector: Guglielmo Marconi
1902: Air Conditioner: Willis Carrier
1902: Neon lamp: Georges Claude
1902: Radio telephone: Poulsen Reginald Fessenden
1902: Rayon cellulose ester: Arthur D. Little
1903: Electrocardiograph (EKG): Willem Einthoven
1903: Powered Monoplane: Richard Pearse
1903: Powered airplane: Wilbur Wright and Orville Wright
1903: Bottle machine: Michael Owens
1903: Windshield wiper: Mary Anderson
1904: Thermionic valve: John Ambrose Fleming
1904: Separable Attachment Plug: Harvey Hubbell
1904: Tractor: Benjamin Holt
1905: Radio tube diode: John Ambrose Fleming
1906: Sonar (first device): Lewis Nixon
1906: Triode amplifier: Lee DeForest
1907: Color photography: Auguste and Louis Lumiere
1907: Helicopter: Paul Cornu
1907: Radio amplifier: Lee DeForest
1907: Radio tube triode: Lee DeForest
1907: Vacuum cleaner, (electric): James Spangler
1907: Washing machine, (electric): Alva Fisher (Hurley Corporation)
1908: Cellophane: Jacques E. Brandenberger
1908: Geiger counter: Hans Geiger and Ernest Rutherford
1908: Gyrocompass: Hermann Ansch?tz-Kaempfe
1908: Haber process: Fritz Haber
1908: Tea bag: Thomas Sullivan
1909: Monoplane: Henry W. Walden
1909: Bakelite: Leo Baekeland
1909: Gun silencer: Hiram Percy Maxim