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Columbia Gas System Service Corporation
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Columbus, OH, US
Business Address
12355 SUNRISE VALLEY DR STE 300 RESTON VA 20191-3458 3024295000
State Location
VA
State of Incorporation
DE
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Patents Grants
last 30 patents
Information
Patent Grant
Heat transfer apparatus
Patent number
5,339,654
Issue date
Aug 23, 1994
Columbia Gas System Service Corporation
F. Bert Cook
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Non-invasive, high resolution detection of electrical currents and...
Patent number
5,126,654
Issue date
Jun 30, 1992
New York Gas Group
John C. Murphy
G01 - MEASURING TESTING
Information
Patent Grant
Non-invasive, high resolution detection of electrical currents and...
Patent number
5,087,873
Issue date
Feb 11, 1992
New York Gas Group
John C. Murphy
G01 - MEASURING TESTING
Information
Patent Grant
Energy recovery system for absorption heat pumps
Patent number
5,077,986
Issue date
Jan 7, 1992
Columbia Gas System Service Corp
F. Bert Cook
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Heat transfer apparatus for heat pumps
Patent number
5,067,330
Issue date
Nov 26, 1991
Columbia Gas System Service Corporation
F. Bert Cook
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
High temperature convection furnace
Patent number
4,891,008
Issue date
Jan 2, 1990
Columbia Gas Service System Corporation
Klaus H. Hemsath
C21 - METALLURGY OF IRON
Information
Patent Grant
High temperature convection furnace
Patent number
4,830,610
Issue date
May 16, 1989
Columbia Gas Service System Corporation
Klaus H. Hemsath
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of locating hydrocarbon producing strata and the instrument...
Patent number
4,805,450
Issue date
Feb 21, 1989
Columbia Gas System Service Corporation
Richmond Bennett
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for measuring the quantity of gas pumped by a compressor
Patent number
4,783,990
Issue date
Nov 15, 1988
Columbia Gas System Service Corporation
Arthur C. Eberle
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for injecting gas into a pipeline
Patent number
4,773,255
Issue date
Sep 27, 1988
Columbia Gas System Service Corporation
Norman D. Malcosky
G01 - MEASURING TESTING
Information
Patent Grant
Dual cooling/heating process and composition
Patent number
4,742,687
Issue date
May 10, 1988
Columbia Gas System Service Corporation
Edward A. Reid
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption refrigeration and heat pump system
Patent number
4,742,693
Issue date
May 10, 1988
Columbia Gas System Service Corp
Edward A. Reid
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption refrigeration and heat pump system
Patent number
4,722,193
Issue date
Feb 2, 1988
Columbia Gas System Service Corp
Edgar M. Purvis
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption refrigeration and heat pump system
Patent number
4,719,767
Issue date
Jan 19, 1988
Columbia Gas System Service Corp
Edward A. Reid
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Dual cooling/heating system energy recovery
Patent number
4,691,532
Issue date
Sep 8, 1987
Columbia Gas System Service Corp
Edward A. Reid
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Gas tracer composition and method
Patent number
4,690,689
Issue date
Sep 1, 1987
Columbia Gas System Service Corp.
Norman D. Malcosky
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for measuring the work performed by a gas compressor
Patent number
4,676,095
Issue date
Jun 30, 1987
Columbia Gas System Service Corp.
Arthur C. Eberle
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus and method for detecting gas bubbles in water, and appara...
Patent number
4,658,750
Issue date
Apr 21, 1987
Columbia Gas System Service Corp.
Norman D. Malcosky
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Grant
Absorption refrigeration and heat pump system
Patent number
4,646,541
Issue date
Mar 3, 1987
Columbia Gas System Service Corporation
Edward A. Reid
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Heat shield
Patent number
4,641,588
Issue date
Feb 10, 1987
Columbia Gas System Service Corp.
Edward M. Winter
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Apparatus and method for burning a combustible gas, and a heat exch...
Patent number
4,641,631
Issue date
Feb 10, 1987
Columbia Gas System Service Corporation
Subhash C. Jatana
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Backfill for magnesium anodes
Patent number
4,623,435
Issue date
Nov 18, 1986
Columbia Gas System Service Corporation
John W. Nebgen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Apparatus and method for detecting gas bubbles in water, and appara...
Patent number
4,571,984
Issue date
Feb 25, 1986
Columbia Gas System Service Corp.
Norman D. Malcosky
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Gas tracer composition and method
Patent number
4,551,154
Issue date
Nov 5, 1985
Columbia Gas System Service Corporation
Norman D. Malcosky
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus and method for burning a combustible gas, and a heat exch...
Patent number
4,541,410
Issue date
Sep 17, 1985
Columbia Gas System Service Corporation
Subhash C. Jatana
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method for determining permeability
Patent number
4,538,460
Issue date
Sep 3, 1985
Columbia Gas System Service Corporation
Paul D. Schettler
G01 - MEASURING TESTING
Information
Patent Grant
Backfill for magnesium anodes
Patent number
4,511,444
Issue date
Apr 16, 1985
Columbia Gas Systems Service Corp.
Alexander J. Dukat
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Solar energy for LNG vaporization
Patent number
4,331,129
Issue date
May 25, 1982
Columbia Gas System Service Corporation
Charles C. Hong
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Using solvents for acidic gas removal
Patent number
4,238,206
Issue date
Dec 9, 1980
Columbia Gas System Service Corporation
Charles C. Hong
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Gas-fired smooth top range
Patent number
4,067,681
Issue date
Jan 10, 1978
Columbia Gas System Service Corporation
Edward A. Reid
F24 - HEATING RANGES VENTILATING
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last 30 patents
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