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David E. Jech
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Tucson, AZ, US
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Patents Grants
last 30 patents
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Patent Grant
High conductivity copper/refractory metal composites and method for...
Patent number
6,589,310
Issue date
Jul 8, 2003
Brush Wellman Inc.
Mark Opoku-Adusei
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Functionally graded metal substrates and process for making same
Patent number
6,114,048
Issue date
Sep 5, 2000
Brush Wellman, Inc.
David E. Jech
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process for making improved net shape or near net shape metal parts
Patent number
5,993,731
Issue date
Nov 30, 1999
Brush Wellman, Inc.
David E. Jech
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process for retarding spontaneous combustion of powdery mixtures
Patent number
5,826,159
Issue date
Oct 20, 1998
Brush Wellman, Inc.
David E. Jech
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process for making improved copper/tungsten composites
Patent number
5,686,676
Issue date
Nov 11, 1997
Brush Wellman Inc.
David E. Jech
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
Information
Patent Application
Metal matrix composite having improved microstructure and the proce...
Publication number
20030217828
Publication date
Nov 27, 2003
Mark Opoku-Adusei
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...