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WESTINGHOUSE LAMP CO

Overview
  • Total Patents
    1,018
About

WESTINGHOUSE LAMP CO has a total of 1,018 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets electrical machinery and energy, machines and materials and metallurgy are SIRIAN LAMP CO, TUNG SOL LAMP WORKS INC and LAMPES FOTOS SOC D.

Patent filings in countries

World map showing WESTINGHOUSE LAMP COs patent filings in countries
# Country Total Patents
#1 United States 690
#2 United Kingdom 81
#3 France 74
#4 Switzerland 61
#5 Canada 60
#6 Germany 42
#7 Austria 4
#8 Spain 4
#9 Australia 1
#10 Denmark 1

Patent filings per year

Chart showing WESTINGHOUSE LAMP COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lamp Company Westinghouse 61
#2 Clayton Rentschler Harvey 39
#3 Wesley Marden John 39
#4 Joseph Higgins John 34
#5 Rentschler Harvey C 20
#6 Gustin Daniel S 18
#7 Driggs Frank H 17
#8 Marden John W 17
#9 Snyder Gustin Daniel 16
#10 Anton Lederer Ernest 15

Latest patents

Publication Filing date Title
US2053318A Electrode construction for discharge lamps
US2042929A Electron discharge device and anode therefor
GB448986A Improvements in or relating to the coating of hollow bodies
US2013415A Method of exhaust
US2040156A Shockproof x-ray tube
US2053327A X-ray tube
US2046360A Bulb coating machine
US2046409A Light intensity indicator
US2046475A Sodium lamp
US2273450A High pressure metal vapor lamp
US2019634A Photo-electric tube
US2028342A Method of butt-sealing incandescent electric lamps
US1986466A X-ray tube and cathode structure therefor
US2019612A X-ray tube and x-ray screen supporting structure
US2006466A Mercury vapor lamp
US1996621A Photoflash lamp
US2019602A Shockproof x-ray unit window
US1965222A Method of doping tungstic oxide
US2056028A Machine for making coiled-coils
US1989824A Method of glazing refractory bodies