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Solon, OH, US
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Patents Grants
last 30 patents
Information
Patent Grant
Process of producing colloidal zirconia sols and powders using an i...
Patent number
5,004,711
Issue date
Apr 2, 1991
Harshaw/Filtrol Partnership
Raymond J. Grodek
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Hydrotreating catalyst
Patent number
4,900,711
Issue date
Feb 13, 1990
Harshaw/Filtrol Partnership
Eugene Nebesh
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Extrusion of macrocrystal scientillation phosphors
Patent number
4,839,090
Issue date
Jun 13, 1989
Harshaw/Filtrol
King H. Rosette
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Pulser stabilized radiation detector
Patent number
4,772,792
Issue date
Sep 20, 1988
Harshaw/Filtrol Partnership
Bradley K. Utts
G01 - MEASURING TESTING
Information
Patent Grant
TLD card reader
Patent number
4,727,253
Issue date
Feb 23, 1988
Harshaw/Filtrol Partnership
William Bruml
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Means for detecting and adjusting metal salt concentration in an el...
Patent number
4,699,081
Issue date
Oct 13, 1987
Harshaw/Filtrol Partnership
Howard S. Mack
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Automated thermoluminescence dosimetry system
Patent number
D291286
Issue date
Aug 11, 1987
Harshaw/Filtrol Partnership
Erwin F. Shrader
D10 - Measuring, testing, or signalling instruments
Information
Patent Grant
Method and apparatus for forming a hermetic seal between glass and...
Patent number
4,676,817
Issue date
Jun 30, 1987
Harshaw/Filtrol Partnership
Ramesh C. Tailor
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Radiation detection and acquisition system
Patent number
4,677,300
Issue date
Jun 30, 1987
Harshaw/Filtrol Partnership
Riad A. Tawil
G01 - MEASURING TESTING
Information
Patent Grant
Extruded copper chromite-alumina hydrogenation catalyst
Patent number
4,666,879
Issue date
May 19, 1987
Harshaw/Filtrol Partnership
Donald G. Kelly
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Inorganic scintillator crystal having a highly reflective surface
Patent number
4,658,141
Issue date
Apr 14, 1987
Harshaw/Filtrol Partnership
Michael C. Wilt
G01 - MEASURING TESTING
Information
Patent Grant
Scintillator crystal having a highly reflective surface
Patent number
4,631,409
Issue date
Dec 23, 1986
Harshaw/Filtrol
Frank M. Sparacia
G01 - MEASURING TESTING
Information
Patent Grant
Pigment consisting of a mixture of chromium oxide and iron oxide us...
Patent number
4,624,710
Issue date
Nov 25, 1986
Harshaw/Filtrol Partnership
Zoltan M. Modly
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Sodium iodide, light pipe
Patent number
4,586,785
Issue date
May 6, 1986
Harshaw/Filtrol Partnership
Carl F. Swinehart
C30 - CRYSTAL GROWTH
Information
Patent Grant
Formable light reflective compositions
Patent number
4,533,489
Issue date
Aug 6, 1985
Harshaw/Filtrol Partnership
Bradley K. Utts
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Hot press-forging of an optical body with dynamic constraint by cry...
Patent number
4,522,865
Issue date
Jun 11, 1985
Harshaw/Filtrol Partnership
Herbert Packer
C30 - CRYSTAL GROWTH
Information
Patent Grant
Ethylene quenched multi-cathode Geiger-Mueller tube with sleeve-and...
Patent number
4,501,988
Issue date
Feb 26, 1985
Harshaw/Filtrol Partnership
Nicholas M. Mitrofanov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Metal finishing barrel having a sliding closure
Patent number
4,467,940
Issue date
Aug 28, 1984
Harshaw/Filtrol Partnership
Frank Little
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Light pipe, laser window and charge stock therefor
Patent number
4,449,780
Issue date
May 22, 1984
Harshaw/Filtrol Partnership
Carl F. Swinehart
C30 - CRYSTAL GROWTH
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73719143 - THERMOBRITE
Serial number
73719143
Filing date
Mar 28, 1988
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73707317 - ALKA-STAR
Serial number
73707317
Registration number
1500930
Filing date
Jan 25, 1988
HARSHAW/FILTROL
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73678114 - MULTITRON
Serial number
73678114
Registration number
1481245
Filing date
Aug 13, 1987
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73661141 - NYSOSEL
Serial number
73661141
Registration number
1498190
Filing date
May 15, 1987
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73661142 - NYSOFACT
Serial number
73661142
Registration number
1499117
Filing date
May 15, 1987
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73646740 - DRYGUARD
Serial number
73646740
Registration number
1479217
Filing date
Feb 26, 1987
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73646741
Serial number
73646741
Registration number
1470296
Filing date
Feb 26, 1987
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73588010 - FLUOPURE
Serial number
73588010
Registration number
1417089
Filing date
Mar 14, 1986
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73519729 - ELECTROPURE
Serial number
73519729
Registration number
1379894
Filing date
Jan 28, 1985
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73498378 - ELECTROPURE
Serial number
73498378
Filing date
Sep 7, 1984
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73491286 - SOLDERFLO
Serial number
73491286
Registration number
1374415
Filing date
Jul 23, 1984
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73491287 - HOT TRACER
Serial number
73491287
Registration number
1404493
Filing date
Jul 23, 1984
HARSHAW/FILTROL PARTNERSHIP
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73468840 - CUPREX
Serial number
73468840
Filing date
Mar 5, 1984
HARSHAW/FILTROL PARTNERSHIP
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73388313 - DISCO
Serial number
73388313
Registration number
1354998
Filing date
Sep 23, 1982
Harshaw Chemical Company, The
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments