List of Notable Inventions and Inventors

Gottfried Wilhelm Leibniz	Invented the Leibniz wheel mechanical calculating machine in 1672
Stephen Gray	Discovered the difference between conductors and insulators in 1729
Luigi Galvani	Discovered Galvanic action in 1780
Alessandro Volta	Invented the electric dry cell in 1800
William Herschel	Discovered infrared radiation in 1800
J W Jitter	Discovered ultraviolet radiation in 1801
E E Fournier d’ Albe	Invented Optophone in 1817
Hans Christian Oersted	Discovered electromagnetism and invented galvanometer in 1820
T J Seebeck	Discovered thermoelectricity in 1821
Jean-Baptiste- Joseph Fourier	Developed Fourier analysis in 1828
George S. Ohm	Formulated Ohm’s law 1826
Michael Faraday	Discovered electromagnetic induction in 1831
Michael Faraday	Invented the transformer in 1831
Charles Babbage	Invented the 1st computer with memory, control, arithmetic unit & I/O in 1833
Michael Faraday	Formulated the law of electrolysis in 1834
Samuel Morse	Invented telegraphy in 1837
Thomas Davenport	Invented the electric motor in 1837
Michael Faraday	Invented the magnetohydrodynamic battery in 1839
Edmond Becquerel	Discovered the photovoltaic effect in 1839
William Grove	Invented the fuel cell in 1839
John Herschel	Invented thermography in 1840
Charles Wheatstone	Invented the differential resistance measurer in 1843
Alexander Bain	Invented facsimile reproduction in 1843
Gustav Kirchhoff	Formulated KCL and KVL in 1845
Werner Siemens	Invented submarine cable insulation in 1847
James Prescot Joule	Discovered magnetostriction in 1847
George Boole	Developed Boolean algebra in 1848
Michael Faraday	Invented thermistor in 1850
J P Reis	Invented diaphragm type microphone in 1860
Plante	Invented the lead acid cell in 1860
James Clerk Maxwell	Discovered the radio wave propagation in 1865
George Leclanche	Invented the Leclanche cell in 1868
Thomas Alva Edison	Invented the phonograph or gramophone in 1877
Henry Hunnings	Invented the carbon granule microphone transmitter using multiple loose contact in 1878
Augustus Desire Waller	Invented the electrocardiograph in 1887
Nikola Tesla	Invented the induction motor in 1888
Almon Brown Strowger	Invented the Strowger Automatic Telephone Exchange in 1889
Joseph John Thomson	The first to study the possibility of waves traveling in hollow pipes or waveguides in 1893
Wilhelm Roentgen	Discovered X-rays in 1895
Guglielmo Marconi	Patented wireless telegraphy in 1896
Joseph John Thomson	Discovered electron in 1897
Thomas Alva Edison	Invented Nickel-iron cell in 1900
Oliver Heaviside and Arthur Kennelly	Discovered Heaviside – Kennelly layer in the upper atmosphere in 1901
Max Planck	Formulated the quantum theory in 1900
Ernst Danielson	Invented synchronous induction motor in 1902
John Ambrose Fleming	Invented vacuum tube diode in 1904
Albert Einstein	Formulated the theory of relativity in 1905
Reginald Fessenden	Conducted the first documented radio broadcasting of speech and music in 1906
Lee De Forest	Invented the VT triode in 1906
Alessandro Artom	Invented goniometer in 1907
Thadius Cahill	Invented electric organ in 1908
Kamerlingh Onnes	Discovered superconductivity in 1911
J R Carson	Developed single side band communication in 1915
W Schottky	Discovered Shot effect in 1918
Vladimir Zworykin	Invented iconoscope in 1923
Edward Appleton	Discovered ionosphere layer in 1925
H J Round	Invented Tetrode in 1926
H S Black	Discovered the effect of negative feedback on amplifiers in 1927
Tellegen and Hoist	Invented pentode in 1928
Julius Lilienfield	Conceptualized MOSFET in 1930
James Chadwick	Discovered neutron in 1932
E H Armstrong	Invented Frequency Modulation in 1933
Westinghouse Co.	Invented Ignitron in 1933
Oskar Heil	Conceptualized FET in 1935
Chester Carlson	Invented xerography in 1937
Norbert Weiner	Invented cybernetics in 1940
Moore School	Developed ENIAC in 1943
University of Pennsylvania	Developed EDVAC in 1947
National Bureau of Standards	Developed SEAC in 1948
Eckert and Mauchly	Developed UNIVAC in 1947
Bardeen, Brattain, and Shockley	Invented the point-contact transistor in 1948
Dennis Gabor	Invented holography in 1948
M V Wilkes	Developed EDSAC in 1948
Yoshire Nakamats	Invented floppy disks in 1950
J I Nishizawa	Invented pin diode in 1950
Andy Kay	Invented Digital Voltmeter in 1952
Leo Esaki	Invented the tunnel diode in 1958
Allen and Gibbons	Invented LED in 1960
R G Sweet	Invented ink jet printing process in 1963
Bryant Rogers	Invented DIP IC in 1964
Douglas Engelbart	Invented computer mouse in 1965
Kao and Hockham	Invented fiber optics communication in 1966
John and deLoach	Invented IMPATT diode in 1964
Prager, Chang, and Weisbrod	Invented TRAPATT diode in 1967
G T Wright	Invented BARITT diode in 1968
Jack Kilby	Invented IC in 1958
Robert Noyce	Invented the IC Aluminum metallization in 1968
ARPANET	Invented the internet in 1969
Bell Labs, University of California	Invented the UNIX operating system in 1970
W S Boyle and G E Smith	Invented the CCD in 1970
Magnavox	Invented the video games in 1972
Hart and Slob	Invented the I2L integrated circuit in 1972
Yu, Cady, and Tantrapon	Invented CATT in 1974
Ad Hoc Committee of Grocery Industry	Invented bar codes in 1974
JVC	Invented VHS recorder in 1975
IBM	Invented Laser printer in 1975
Sony	Invented Betamax Video Recorder in 1975
Sinclair Radionics	Invented pocket TV receiver in 1977
Philips	Invented compact disc laser optical recording system in 1978
Standard Telephoned and Cables	Invented fiber optic submarine cable in 1981