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Geoffrey Sigworth
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Green Lane, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method for grain refinement of high strength aluminum casting alloys
Patent number
6,645,321
Issue date
Nov 11, 2003
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for grain refinement of high strength aluminum casting alloys
Patent number
6,368,427
Issue date
Apr 9, 2002
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for optimization of the grain refinement of aluminum alloys
Patent number
6,073,677
Issue date
Jun 13, 2000
Opticast AB
Lennart Backerud
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Gas analyzer for molten metals
Patent number
5,495,746
Issue date
Mar 5, 1996
Geoffrey K. Sigworth
G01 - MEASURING TESTING
Information
Patent Grant
Gas analyzer for molten metals
Patent number
5,345,808
Issue date
Sep 13, 1994
Geoffrey K. Sigworth
G01 - MEASURING TESTING
Information
Patent Grant
Grain refiner for aluminum containing silicon
Patent number
5,180,447
Issue date
Jan 19, 1993
KB Alloys, Inc.
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Third element additions to aluminum-titanium master alloys
Patent number
5,100,488
Issue date
Mar 31, 1992
KB Alloys, Inc.
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Grain refiner for aluminum containing silicon
Patent number
5,055,256
Issue date
Oct 8, 1991
KB Alloys, Inc.
Geoffrey Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Third element additions to aluminum-titanium master alloys
Patent number
5,041,263
Issue date
Aug 20, 1991
KB Alloys, Inc.
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Third element additions to aluminum-titanium master alloys
Patent number
4,873,054
Issue date
Oct 10, 1989
KB Alloys, Inc.
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Third element additions to aluminum-titanium master alloys
Patent number
4,812,290
Issue date
Mar 14, 1989
KB Alloys, Inc.
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Aluminum grain refiner containing duplex crystals
Patent number
4,612,073
Issue date
Sep 16, 1986
Cabot Corporation
Matthew M. Guzowski
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR GRAIN REFINEMENT OF HIGH STRENGTH ALUMINUM CASTING ALLOYS
Publication number
20030190252
Publication date
Oct 9, 2003
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for grain refinement of high strength aluminum casting alloys
Publication number
20030068249
Publication date
Apr 10, 2003
Geoffrey K. Sigworth
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...