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TUNG SOL LAMP WORKS INC

Overview
  • Total Patents
    78
About

TUNG SOL LAMP WORKS INC has a total of 78 patent applications. Its first patent ever was published in 1929. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, machines and telecommunications are SIRIAN LAMP CO, WESTINGHOUSE LAMP CO and VER GLUEHLAMPEN & ELEK AG.

Patent filings in countries

World map showing TUNG SOL LAMP WORKS INCs patent filings in countries
# Country Total Patents
#1 United States 78

Patent filings per year

Chart showing TUNG SOL LAMP WORKS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Braunsdorff Reginald K 12
#2 Edward Atkins Carl 12
#3 Philip Sitzer 7
#4 Schulte Milton R 5
#5 Narwid Cyprian A 3
#6 Atkins Carl E 3
#7 Leuthold Edgar J 3
#8 Mundel Marvin E 2
#9 Fidler Robert H 2
#10 Richard Kuhlman 2

Latest patents

Publication Filing date Title
US2612476A Luminescent screen for image reproducing tubes
US2587551A Thermostatic switch
US2530142A Secret signaling system
US2607742A Metallic getter compositions
US2607900A Cathode-ray tube
US2654401A Method of manufacture of grid structures
US2556059A Electric incandescent lamp and method of manufacturing
US2509259A Manufacture of electric incandescent lamps
US2537485A Control means
US2543093A Electric lamp
US2610290A Prefocused head lamp bulb mounting
US2489261A Metallic filament incandescent electric lamp and the manufacture thereof
US2490776A Manufacture of sealed lighting unit
US2444423A Incandescent lamp and the like
US2462837A Incandescent lamp
US2510128A Method of plating metals with zirconium
US2482826A Filament structure for thermionic tubes
US2503303A Electric flasher
US2454270A Basing electric bulb
US2549359A Machine for sealing in miniature incandescent lamp bulb mounts