US Patent 7641984 Composite metal foam and methods of preparation thereof

Patent 7641984 was granted and assigned to North Carolina State University on January, 2010 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

North Carolina State University

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7641984

Date of Patent

January 5, 2010

Patent Application Number

11289661

Date Filed

November 29, 2005

Patent Citations Received

‌

US Patent 11987315 Methods and apparatus for selective stiffness of vehicle suspension

Patent Primary Examiner

‌

George Wyszomierski

Patent abstract

The present invention is directed to composite metal foams comprising hollow metallic spheres and a solid metal matrix. The composite metal foams show high strength, particularly in comparison to previous metal foams, while maintaining a favorable strength to density ratio. The composite metal foams can be prepared by various techniques, such as powder metallurgy and casting.

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