John A. Davis, JR.

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Harrisburg, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a hypereutectoid, head-hardened steel rail
- Patent number 8,241,442
- Issue date Aug 14, 2012
- Arcelormittal Investigacion y Desarrollo, S.L.
- Bruce L. Bramfitt
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MAKING HYPEREUTECTOID, HEAD-HARDENED STEEL RAIL
- Publication number 20120298263
- Publication date Nov 29, 2012
- Bruce L. BRAMFITT
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF MAKING A HYPEREUTECTOID, HEAD-HARDENED STEEL RAIL
- Publication number 20110139320
- Publication date Jun 16, 2011
- Bruce L. BRAMFITT
- C21 - METALLURGY OF IRON