David E. Lenhart, JR.

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Pomeroy, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Powder metal forging and method and apparatus of manufacture
- Patent number 8,309,019
- Issue date Nov 13, 2012
- GKN Sinter Metals, LLC
- Alfred J. Chiesa
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
POWDER METAL FORGING AND METHOD AND APPARATUS OF MANUFACTURE
- Publication number 20110000335
- Publication date Jan 6, 2011
- Alfred J. Chiesa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Powder Metal Forging and Method and Apparatus of Manufacture
- Publication number 20100035077
- Publication date Feb 11, 2010
- Alfred J. Chiesa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...