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John J. Eckenrod
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Coraopolis, PA, US
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last 30 patents
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Patent Grant
High strength, corrosion resistant austenitic stainless steel and c...
Patent number
5,841,046
Issue date
Nov 24, 1998
Crucible Materials Corporation
Geoffrey O. Rhodes
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Welded corrosion-resistant ferritic stainless steel tubing having h...
Patent number
4,942,922
Issue date
Jul 24, 1990
Crucible Materials Corporation
Lawrence S. Redmerski
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Low carbon plus nitrogen free-machining austenitic stainless steels...
Patent number
4,933,142
Issue date
Jun 12, 1990
Crucible Materials Corporation
Walter T. Haswell
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Corrosion-resistant, low-carbon plus nitrogen austenitic stainless...
Patent number
4,797,252
Issue date
Jan 10, 1989
Crucible Materials Corporation
John J. Eckenrod
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Low carbon plus nitrogen, free-machining austenitic stainless steel
Patent number
4,784,828
Issue date
Nov 15, 1988
Crucible Materials Corporation
John J. Eckenrod
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Age-hardenable stainless steel having improved machinability
Patent number
4,769,213
Issue date
Sep 6, 1988
Crucible Materials Corporation
Walter T. Haswell
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Low carbon plus nitrogen, free-machining austenitic stainless steel
Patent number
4,613,367
Issue date
Sep 23, 1986
Crucible Materials Corporation
John J. Eckenrod
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Austenitic stainless steel
Patent number
4,421,557
Issue date
Dec 20, 1983
Colt Industries Operating Corp.
Paul A. Rossomme
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...