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LONE STAR GAS CO

Overview
  • Total Patents
    16
About

LONE STAR GAS CO has a total of 16 patent applications. Its first patent ever was published in 1933. It filed its patents most often in United States and Canada. Its main competitors in its focus markets thermal processes, mechanical elements and control are WATSCO INC, MOCK BRUNO A and ZEYFANG FREDERICK W.

Patent filings in countries

World map showing LONE STAR GAS COs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 2

Patent filings per year

Chart showing LONE STAR GAS COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Woodward Martin James 6
#2 Martin James Woodward 2
#3 Goldsberry F 2
#4 Goldsberry Fred L 2
#5 Clymer Henry F 1
#6 Bacon Thomas S 1
#7 Cravy Jerald A 1
#8 Mccall Clarence D 1
#9 Kaltenbaugh John J 1
#10 Foster Robert F 1

Latest patents

Publication Filing date Title
US5544977A Polymeric pipe splitter, replacement tool and method
US4034774A Low point control system
US3864065A Refrigerant expander compressor
US3861166A Heat pump system
US3854663A Constant density regulator
US3808886A Volumetric flow meter
US2915325A Separable couplings
US2647477A Vent protecting and draft equalizing device
US2446941A Vaporizing apparatus for liquefied gases
US2319819A Liquefied gas vaporizer
US2408084A Vaporizing apparatus
US2084297A Method for vaporizing liquefied petroleum gas
US2087983A Draft equalizer for gas burners
US2019468A Process for purifying gas
CA423543A Liquefied gas vaporizer
CA423542A Vaporizing apparatus