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Subhasish Sircar
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Richmond, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Aluminum alloys with optimum combinations of formability, corrosion...
Patent number
6,656,296
Issue date
Dec 2, 2003
Reynolds Metals Company
Baolute Ren
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Free machining aluminum alloy with high melting point machining con...
Patent number
6,656,295
Issue date
Dec 2, 2003
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Corrosion and grain growth resistant aluminum alloy
Patent number
6,503,446
Issue date
Jan 7, 2003
Reynolds Metals Company
Baolute Ren
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Aluminum alloys with optimum combinations of formability, corrosion...
Patent number
6,458,224
Issue date
Oct 1, 2002
Reynolds Metals Company
Baolute Ren
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Free machining aluminum alloy with high melting point machining con...
Patent number
6,416,598
Issue date
Jul 9, 2002
Reynolds Metals Company
Subhasish Sircar
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Free machining aluminum alloy containing bismuth or bismuth-tin for...
Patent number
6,409,966
Issue date
Jun 25, 2002
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Methods of improving hot working productivity and corrosion resista...
Patent number
6,322,647
Issue date
Nov 27, 2001
Reynolds Metals Company
Rajeev G. Kamat
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Free-machining aluminum alloy and method of use
Patent number
6,315,947
Issue date
Nov 13, 2001
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Aluminum alloy article and method of use
Patent number
6,065,534
Issue date
May 23, 2000
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Corrosion resistant, drawable and bendable aluminum alloy, process...
Patent number
5,976,278
Issue date
Nov 2, 1999
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Corrosion resistant aluminum alloy
Patent number
5,906,689
Issue date
May 25, 1999
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of improving the corrosion resistance of aluminum alloys and...
Patent number
5,785,776
Issue date
Jul 28, 1998
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method and apparatus for production of powders
Patent number
5,738,830
Issue date
Apr 14, 1998
The United States of America as represented by the administrator of the Natio...
Joel M. Stoltzfus
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of forming product having globular microstructure
Patent number
5,730,198
Issue date
Mar 24, 1998
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Free-machining aluminum alloy and method of use
Patent number
5,725,694
Issue date
Mar 10, 1998
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for production of powders
Patent number
5,635,153
Issue date
Jun 3, 1997
The United States of America as represented by the administrator of the Natio...
Joel M. Stoltzfus
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Machineable aluminum alloys containing In and Sn and process for pr...
Patent number
5,587,029
Issue date
Dec 24, 1996
Reynolds Metals Company
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
Aluminum alloys with optimum combinations of formability, corrosion...
Publication number
20030029533
Publication date
Feb 13, 2003
Baolute Ren
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Free machining aluminum alloy with high melting point machining con...
Publication number
20020100523
Publication date
Aug 1, 2002
Subhasish Sircar
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...