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COLUMBIA PHONOGRAPH CO INC

Overview
  • Total Patents
    75
About

COLUMBIA PHONOGRAPH CO INC has a total of 75 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets audio-visual technology, machines and consumer goods are GRAMMOPHON GES MIT BESCHRAENKT, COLUMBIA GRAPHOPHONE MFG CO and VICTOR TALKING MACHINE CO.

Patent filings in countries

World map showing COLUMBIA PHONOGRAPH CO INCs patent filings in countries
# Country Total Patents
#1 United States 73
#2 United Kingdom 2

Patent filings per year

Chart showing COLUMBIA PHONOGRAPH CO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hinckley Frank C 13
#2 Allen Mitchell Frank 11
#3 Capps Frank L 8
#4 Roberts Theodore C 7
#5 Prescott John O 6
#6 Friebus Reginald T 3
#7 Thomas Forse William 2
#8 Zabriskie Ernest R 2
#9 Webster Benjamin C 2
#10 Bahr Gustave F 2

Latest patents

Publication Filing date Title
US2027519A Cold light source
US1941612A Attachment plug cap
US1948077A Conveyer stop announcing system
US1951668A Phonograph
US1912105A Lid supporting means for cabinets or boxes
US1958564A Motor drive
US1853210A Phonograph
US1944202A Apparatus for reproducing sound from records
US1894747A Electric switch gear
US1894455A Synchronous motor
US1913558A Automatic stop
US1885885A Winding mechanism
US1759664A Selector tuning device
US1902057A Wire stylus and method and means of feeding same
US1958587A Carrying handle for portable gramophones or the like
US1783671A Selector tuning device
US1891227A Sound reproducing means and method
US1877447A Means and method of reproducing pictures or scenes from recordes impulses
US1887629A Sound reproducing apparatus
US1916973A Sound reproducing means and method