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WELSBACH LIGHT CO

Overview
  • Total Patents
    114
About

WELSBACH LIGHT CO has a total of 114 patent applications. Its first patent ever was published in 1896. It filed its patents most often in United States and Canada. Its main competitors in its focus markets electrical machinery and energy, thermal processes and machines are DANISCHEVSKI JOSEPH, MANTLE LAMP COMPANY and PENNSYLVANIA GLOBE GAS LIGHT COMPANY.

Patent filings in countries

World map showing WELSBACH LIGHT COs patent filings in countries
# Country Total Patents
#1 United States 103
#2 Canada 11

Patent filings per year

Chart showing WELSBACH LIGHT COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Litle Thomas James Jr 23
#2 Lyon Howard 21
#3 Welsbach Carl Auer Von 6
#4 Litle Thomas J Jr 6
#5 Knoedler Elmer L 6
#6 Stites Townsend 5
#7 Little Thomas James Jr 3
#8 Gulbrandsen Sverre 3
#9 Ewing Robert E 3
#10 Baskerville Charles 2

Latest patents

Publication Filing date Title
US1202080A Cluster-lamp for inverted limp mantles.
US1197365A Limp incandescent mantle.
US1204996A Pilot-lighting device.
US1201030A Inverted incandescent gas-lamp.
US1201029A Incandescent gas-lamp.
US1239372A Globe-holder for incandescent gas-lamps.
US1202079A Cluster incandescent gas-lamp.
US1189146A Gas-burner.
US1200375A Electromagnetic valve.
US1154421A Burner-tip.
US1140026A By-pass gas-cock.
US1183657A Globe-holder.
US1133410A Support or holder for lamp globes or reflectors.
US1251547A Protecting device for incandescent gas-lamps.
US1142594A Burner for inverted incandescent gas-lamps.
US1158249A Cluster incandescent lamp.
US1132365A Cluster incandescent lamp.
US1133469A Limp inverted mantle.
US1190660A Cluster-burner for incandescent lamps.
CA160102A Oil lamp