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VIRGINIA CHEMICALS, INC
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PORTSMOUTH, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method of preparing reproducibly stable aqueous suspensions of sodi...
Patent number
4,729,886
Issue date
Mar 8, 1988
Virginia Chemicals, Inc.
Edwin D. Little
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Treatment of sodium dithionite reaction mixture
Patent number
4,622,216
Issue date
Nov 11, 1986
Virginia Chemicals, Inc.
Charles E. Winslow
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of 2,6-diisopropylnaphthalene dihydroper...
Patent number
4,503,262
Issue date
Mar 5, 1985
Virginia Chemicals, Inc.
B. Franklin Gupton
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Integral suction line accumulator/filter-drier
Patent number
4,354,362
Issue date
Oct 19, 1982
Virginia Chemicals, Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Air-conditioning system having recirculating and flow-control means
Patent number
4,187,695
Issue date
Feb 12, 1980
Virginia Chemicals Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Combination liquid trapping suction accumulator and evaporator pres...
Patent number
3,942,332
Issue date
Mar 9, 1976
Virginia Chemicals, Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Combination liquid trapping suction accumulator and evaporator pres...
Patent number
3,938,351
Issue date
Feb 17, 1976
Virginia Chemicals, Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Liquid trapping suction accumulator
Patent number
3,938,353
Issue date
Feb 17, 1976
Virginia Chemicals, Inc.
George T. Wrenn
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73273181 - V
Serial number
73273181
Registration number
1251365
Filing date
Aug 7, 1980
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73062199 - VIRTEX
Serial number
73062199
Registration number
1047431
Filing date
Sep 5, 1975
VIRGINIA CHEMICALS, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72366080 - K-BRITE
Serial number
72366080
Registration number
923709
Filing date
Jul 23, 1970
VIRGINIA CHEMICALS, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72349712 - VIRCHEM
Serial number
72349712
Registration number
907389
Filing date
Jan 26, 1970
VIRGINIA CHEMICALS, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry