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VIRGINIA CHEMICALS INC
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WEST NORFOLK, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method of bleaching high yield pulp by using dithionite ion and exc...
Patent number
4,863,564
Issue date
Sep 5, 1989
Virginia Chemicals Inc.
S. Allen Grimsley
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Treatment of waste stream from pentaerythritol manufacture
Patent number
4,612,389
Issue date
Sep 16, 1986
Virginia Chemicals Inc.
Frank Gupton
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of isoxanthate salts and dithiocarbonate diesters
Patent number
4,569,797
Issue date
Feb 11, 1986
Virginia Chemicals Inc.
Donald M. Snyder
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Sodium hydrosulfite slurries
Patent number
4,534,954
Issue date
Aug 13, 1985
Virginia Chemicals Inc.
Edwin D. Little
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Rehardening of copper connectors
Patent number
4,423,618
Issue date
Jan 3, 1984
Virginia Chemicals Inc.
John P. Clarke
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Refrigerant suction line filter/filter-drier and method for the con...
Patent number
4,364,756
Issue date
Dec 21, 1982
Virginia Chemicals Inc.
John P. Clarke
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Treatment of waste stream from pentaerythritol production
Patent number
4,328,366
Issue date
May 4, 1982
Virginia Chemicals Inc.
Charles E. Winslow
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Replaceable float oil separator
Patent number
4,310,338
Issue date
Jan 12, 1982
Virginia Chemicals Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Acid field test kit for refrigeration oils containing a leak detector
Patent number
4,288,402
Issue date
Sep 8, 1981
Virginia Chemicals Inc.
Leonard C. Ellis
G01 - MEASURING TESTING
Information
Patent Grant
Process for manufacture of stable sodium dithionite slurries
Patent number
4,283,303
Issue date
Aug 11, 1981
Virginia Chemicals Inc.
Leonard C. Ellis
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Byproduct recovery from a pentaerythritol waste stream
Patent number
4,277,620
Issue date
Jul 7, 1981
Virginia Chemicals Inc.
B. Frank Gupton
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of alkali metal dithionites from sulfur dioxide, alkali...
Patent number
4,218,429
Issue date
Aug 19, 1980
Virginia Chemicals Inc.
Logan C. Bostian
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Two-way filter-drier for heat pump systems
Patent number
4,177,145
Issue date
Dec 4, 1979
Virginia Chemicals Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Pressure control device for fluid systems
Patent number
4,140,436
Issue date
Feb 20, 1979
Virginia Chemicals Inc.
Ernest W. Schumacher
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Production of sodium dithionite from sulfur dioxide, sodium formate...
Patent number
4,127,642
Issue date
Nov 28, 1978
Virginia Chemicals Inc.
Logan C. Bostian
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Balanced single port thermostatic expansion valve
Patent number
4,095,742
Issue date
Jun 20, 1978
Virginia Chemicals Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Stabilized sodium dithionite solutions
Patent number
3,985,674
Issue date
Oct 12, 1976
Virginia Chemicals Inc.
Leonard C. Ellis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of removing sodium thiosulfate from a hydrosulfite reaction...
Patent number
3,961,034
Issue date
Jun 1, 1976
Virginia Chemicals Inc.
Logan C. Bostian
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Apparatus for aqueous solutions of pure sodium hydrosulfite
Patent number
3,957,253
Issue date
May 18, 1976
Virginia Chemicals Inc.
Robert W. Barton
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Combination liquid trapping suction accumulator and evaporator pre...
Patent number
3,955,375
Issue date
May 11, 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
3,939,669
Issue date
Feb 24, 1976
Virginia Chemicals Inc.
Ernest W. Schumacher
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73643694 - CORFAX
Serial number
73643694
Registration number
1458889
Filing date
Feb 9, 1987
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73587351 - REACTAVAT
Serial number
73587351
Registration number
1472741
Filing date
Mar 10, 1986
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73587352 - REACTASTRIP
Serial number
73587352
Registration number
1472742
Filing date
Mar 10, 1986
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73551975 - SUS-PEN
Serial number
73551975
Registration number
1384883
Filing date
Aug 5, 1985
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73531313
Serial number
73531313
Registration number
1390422
Filing date
Apr 8, 1985
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73521858 - IPAPMA
Serial number
73521858
Registration number
1365106
Filing date
Feb 11, 1985
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73515941 - CLEARFAS
Serial number
73515941
Registration number
1356089
Filing date
Dec 31, 1984
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
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
73264749 - VIRGINIA VIRGINIA CHEMICALS
Serial number
73264749
Registration number
1248024
Filing date
Jun 3, 1980
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73253875 - N
Serial number
73253875
Registration number
1209377
Filing date
Mar 14, 1980
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73252654 - VIRCHEM D-OX
Serial number
73252654
Registration number
1193469
Filing date
Mar 5, 1980
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73246251 - VIRCURE
Serial number
73246251
Registration number
1199206
Filing date
Jan 15, 1980
Virginia Chemicals Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73086037 - PANTASTIC
Serial number
73086037
Registration number
1111644
Filing date
May 4, 1976
VIRGINIA CHEMICALS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73080172 - VIRCHEM
Serial number
73080172
Registration number
1084415
Filing date
Mar 15, 1976
VIRGINIA CHEMICALS INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73070162 - VIRCHEM
Serial number
73070162
Registration number
1041271
Filing date
Nov 26, 1975
VIRGINIA CHEMICALS INC.
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73070247 - SPRAYRITE
Serial number
73070247
Registration number
1048842
Filing date
Nov 26, 1975
VIRGINIA CHEMICALS INC.
5 - Pharmaceutical and veterinary preparations
Information
Trademark
73070250 - VIRCHEM
Serial number
73070250
Registration number
1041244
Filing date
Nov 26, 1975
VIRGINIA CHEMICALS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73070235 - VIRCHEM V
Serial number
73070235
Registration number
1049364
Filing date
Nov 26, 1975
VIRGINIA CHEMICALS INC.
5 - Pharmaceutical and veterinary preparations
Information
Trademark
73056761 - V VIRCHEM
Serial number
73056761
Registration number
1090579
Filing date
Jul 2, 1975
VIRGINIA CHEMICALS INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72452717 - TKO
Serial number
72452717
Registration number
991950
Filing date
Mar 28, 1973
VIRGINIA CHEMICALS INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72448164 - V VIRCHEM 932
Serial number
72448164
Registration number
964954
Filing date
Feb 8, 1973
VIRGINIA CHEMICALS INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72444320 - V VIRCHEM
Serial number
72444320
Registration number
974530
Filing date
Dec 20, 1972
VIRGINIA CHEMICALS INC.
6 - Common metals and their alloys
Information
Trademark
72431662 - VIRCHEM
Serial number
72431662
Registration number
962395
Filing date
Aug 3, 1972
VIRGINIA CHEMICALS INC.
5 - Pharmaceutical and veterinary preparations
Information
Trademark
72391363 - TURF GREEN
Serial number
72391363
Registration number
968940
Filing date
May 6, 1971
VIRGINIA CHEMICALS INC.
2 - Paints, varnishes, lacquers
Information
Trademark
72381658 - 931
Serial number
72381658
Registration number
933459
Filing date
Jan 21, 1971
VIRGINIA CHEMICALS INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72377210 - VIR-RINS
Serial number
72377210
Registration number
926368
Filing date
Nov 25, 1970
VIRGINIA CHEMICALS INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72367547 - VIRMIST
Serial number
72367547
Registration number
920493
Filing date
Aug 10, 1970
VIRGINIA CHEMICALS INC.
5 - Pharmaceutical and veterinary preparations
Information
Trademark
72367030 - VIRCHEM V
Serial number
72367030
Registration number
926731
Filing date
Aug 3, 1970
VIRGINIA CHEMICALS INC.
7 - Machines and machine tools
Information
Trademark
72366224 - VIRCEL
Serial number
72366224
Registration number
924578
Filing date
Jul 24, 1970
VIRGINIA CHEMICALS INC.
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
72364522 - VIRTEX
Serial number
72364522
Registration number
981492
Filing date
Jul 6, 1970
VIRGINIA CHEMICALS INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry