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ELKEM METALS COMPANY
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PITTSBURGH, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Process for making manganese
Patent number
5,932,086
Issue date
Aug 3, 1999
Elkem Metals Company, L.P.
Arash M. Kasaaian
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Ferrophosphorus refining process
Patent number
5,362,440
Issue date
Nov 8, 1994
Elkem Metals Company
Deepak Madan
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Desulfurization agent
Patent number
5,149,364
Issue date
Sep 22, 1992
Elkem Metals Company
Donald B. Craig
C21 - METALLURGY OF IRON
Information
Patent Grant
Desulfurization agent
Patent number
5,078,784
Issue date
Jan 7, 1992
Elkem Metals Company
Donald B. Craig
C21 - METALLURGY OF IRON
Information
Patent Grant
Active mass for making organohalosilanes
Patent number
5,061,672
Issue date
Oct 29, 1991
Elkem Metals Company
Azza A. Elattar
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Desulfurization agent
Patent number
4,941,914
Issue date
Jul 17, 1990
Elkem Metals Company
Donald B. Craig
C21 - METALLURGY OF IRON
Information
Patent Grant
System for recycling fines to hollow electrode
Patent number
4,816,230
Issue date
Mar 28, 1989
Elkem Metals Company
John F. Bortnik
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Soft composite metal powder and method to produce same
Patent number
4,799,955
Issue date
Jan 24, 1989
Elkem Metals Company
Melvin L. McClellan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Dephosphorization process for manganese alloys
Patent number
4,752,327
Issue date
Jun 21, 1988
Elkem Metals Company
Young E. Lee
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Gray cast iron inoculant
Patent number
4,749,549
Issue date
Jun 7, 1988
Elkem Metals Company
Mary J. Hornung
C21 - METALLURGY OF IRON
Information
Patent Grant
Dephosphorization process for manganese-containing alloys
Patent number
4,684,403
Issue date
Aug 4, 1987
Elkem Metals Company
Young E. Lee
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing metal sulfide and the product produced therefrom
Patent number
4,676,970
Issue date
Jun 30, 1987
Elkem Metals Company
Lamar S. Todd
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Gray cast iron inoculant
Patent number
4,666,516
Issue date
May 19, 1987
Elkem Metals Company
Mary J. Hornung
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for producing predominately iron alloy containing magnesium
Patent number
4,592,538
Issue date
Jun 3, 1986
Elkem Metals Company
James E. Wells
C21 - METALLURGY OF IRON
Information
Patent Grant
Alloy useful for producing ductile and compacted graphite cast irons
Patent number
4,545,817
Issue date
Oct 8, 1985
Elkem Metals Company
Paul J. Bilek
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus and process for producing predominately iron alloy contai...
Patent number
4,519,838
Issue date
May 28, 1985
Elkem Metals Company
James E. Wells
C21 - METALLURGY OF IRON
Information
Patent Grant
Slide gate valve for dry bulk discharging containers
Patent number
4,509,717
Issue date
Apr 9, 1985
Elkem Metals Company
Dennis C. Wright
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
System for recycling fines to hollow electrode
Patent number
4,491,568
Issue date
Jan 1, 1985
Elkem Metals Company
John F. Bortnik
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Color pigment for use in the production of thermoplastic articles
Patent number
4,480,064
Issue date
Oct 30, 1984
Elkem Metals Company
Kuldip S. Chopra
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Alloy and process for producing ductile and compacted graphite cast...
Patent number
4,472,197
Issue date
Sep 18, 1984
Elkem Metals Company
Paul J. Bilek
C21 - METALLURGY OF IRON
Information
Patent Grant
Alloy and process for producing and casting ductile and compacted g...
Patent number
4,459,154
Issue date
Jul 10, 1984
Elkem Metals Company
James E. Wells
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Color retention pigment for paint compositions using latex vehicles
Patent number
4,420,340
Issue date
Dec 13, 1983
Elkem Metals Company
Bernard Mohr
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zinc rich paint formulations employing manganomanganic oxide fume p...
Patent number
4,417,007
Issue date
Nov 22, 1983
Elkem Metals Company
George A. Salensky
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Improved color pigment for solvent-base paint formulations
Patent number
4,417,008
Issue date
Nov 22, 1983
Elkem Metals Company
George A. Salensky
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Low density compacts of prepared mix for use in the production of s...
Patent number
4,395,285
Issue date
Jul 26, 1983
Elkem Metals Company
Rodney F. Merkert
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74341021 - RESEED
Serial number
74341021
Registration number
1855078
Filing date
Dec 18, 1992
ELKEM METALS COMPANY
6 - Common metals and their alloys
Information
Trademark
74086744 - ZORVEX
Serial number
74086744
Registration number
1679160
Filing date
Aug 10, 1990
ELKEM METALS COMPANY
6 - Common metals and their alloys
Information
Trademark
74086846 - QUALITY IS OUR PRIORITY
Serial number
74086846
Registration number
1649931
Filing date
Aug 10, 1990
ELKEM METALS COMPANY
6 - Common metals and their alloys
Information
Trademark
73799700 - COFLUX
Serial number
73799700
Registration number
1604217
Filing date
May 12, 1989
ELKEM METALS COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73501644 - THE FERROALLOY PROFESSIONALS
Serial number
73501644
Registration number
1392101
Filing date
Oct 1, 1984
ELKEM METALS COMPANY
6 - Common metals and their alloys
Information
Trademark
73481152 - FOUNDRISIL
Serial number
73481152
Registration number
1365196
Filing date
May 21, 1984
ELKEM METALS COMPANY
6 - Common metals and their alloys
Information
Trademark
73481151 - FOUNDRITI
Serial number
73481151
Registration number
1365195
Filing date
May 21, 1984
ELKEM METALS COMPANY
6 - Common metals and their alloys
Information
Trademark
73429681 - EM
Serial number
73429681
Filing date
Jun 10, 1983
ELKEM METALS COMPANY
6 - Common metals and their alloys