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RAINBOW LIGHT INC

Overview
  • Total Patents
    37
About

RAINBOW LIGHT INC has a total of 37 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United States, France and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, machines and audio-visual technology are WALTER LUDWIG WILHELM SCHALLRE, HENNINGER JR ANDREW F and SPERTI LAMP CORP.

Patent filings in countries

World map showing RAINBOW LIGHT INCs patent filings in countries
# Country Total Patents
#1 United States 18
#2 France 6
#3 United Kingdom 6
#4 Canada 5
#5 Belgium 1
#6 Germany 1

Patent filings per year

Chart showing RAINBOW LIGHT INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Robert Machlett Raymond 6
#2 Machlett Raymond R 6
#3 Machlett Raymond Robert 5
#4 Fraser Stokes John 2
#5 Rene Grandjean 2
#6 Marcel Abadie Jean-Baptiste Jo 1
#7 Young Frederick W 1
#8 Stokes John Fraser 1
#9 Oscar Werner 1

Latest patents

Publication Filing date Title
US1945286A Electric discharge tube
US1945285A Low voltage discharge tube
US1961618A Low voltage electric discharge tube
US1961617A Luminous discharge tube
US1791857A Aerial display apparatus
GB319016A Luminous electric discharge tube
US1789557A Luminous tube
US1874407A Electrical protective device
US1874018A Process of manufacturing luminous tubes and apparatus for carrying them out
GB293681A Improvements in starting and operating luminous electric discharge tubes
GB293683A Improvements in argon-mercury discharge tubes
GB293682A Improvements in luminous electric discharge tubes of high candle power
US1819105A High frequency luminous tube
US1680271A Argon-mercury discharge tube
US1757776A Starting and operating circuits for luminous tubes
US1677692A Electrical cut-out
US1689146A Neon tube
US1628256A Neon tube
US1789556A Method of manufacturing gas-filled envelopes
US1704472A Yielding holder for luminous tubes