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David D. Leon
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Murrysville, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Gas enhanced controlled cooling ingot mold
Patent number
7,011,140
Issue date
Mar 14, 2006
Alcoa Inc.
Ho Yu
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Linear nozzle with tailored gas plumes
Patent number
6,514,342
Issue date
Feb 4, 2003
Alcoa Inc.
Robert L. Kozarek
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Linear nozzle with tailored gas plumes
Patent number
6,258,166
Issue date
Jul 10, 2001
Alcoa Inc.
David D. Leon
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method and apparatus for producing a porous metal via spray casting
Patent number
6,250,362
Issue date
Jun 26, 2001
Alcoa Inc.
Roberto J. Rioja
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Linear nozzle with tailored gas plumes and method
Patent number
5,968,601
Issue date
Oct 19, 1999
Aluminum Company of America
David D. Leon
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of welding thermoplastic substrates with microwave frequencies
Patent number
5,338,611
Issue date
Aug 16, 1994
Aluminum Company of America
Herbert J. Lause
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for controlling the heat transfer of liquid co...
Patent number
5,148,853
Issue date
Sep 22, 1992
Aluminum Company of America
Ho Yu
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
Information
Patent Application
Method of recycling brazing sheet
Publication number
20050262967
Publication date
Dec 1, 2005
Alcoa Company of America
David D. Leon
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for producing foamed aluminum products
Publication number
20040163492
Publication date
Aug 26, 2004
Mark D. Crowley
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for producing foamed aluminum products
Publication number
20040079198
Publication date
Apr 29, 2004
J. Daniel Bryant
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...