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COLUMBIA GAS SYST SERVICE CORP

Overview
  • Total Patents
    13
About

COLUMBIA GAS SYST SERVICE CORP has a total of 13 patent applications. Its first patent ever was published in 1968. It filed its patents most often in United States, Japan and Sweden. Its main competitors in its focus markets thermal processes, machine tools and furniture and games are DAISHIN KOGYO KENKYUSHO KK, WORLD SEIKI KK and PALOMA KOGYO KK.

Patent filings in countries

World map showing COLUMBIA GAS SYST SERVICE CORPs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Japan 1
#3 Sweden 1
#4 South Africa 1

Patent filings per year

Chart showing COLUMBIA GAS SYST SERVICE CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Reid E 4
#2 Ballis W 3
#3 Venendaal R 3
#4 Gwin R 3
#5 Churchheus C 3
#6 Myler G 2
#7 Hutt B 2
#8 Sorenson J 1
#9 Groom J 1
#10 Sabuhatsushiyu Shii Jiyatana 1

Latest patents

Publication Filing date Title
JPS6146842A Method and device for burning combustible gas
US3790952A System for printing out the metered flow of a fluid daily or for other predetermined periods of time
US3828575A Compact heating and cooling system
US3785364A Smooth top range
US3783223A Welding torch oscillator
US3783222A Welding torch oscillator and positioner
US3744475A Tilting brazier
US3789511A Apparatus for sensing a curvature in a conduit
US3748433A Electric welding torch oscillator and guide
US3720858A Relay timing system
US3712289A Deep fat fryer