Ronald H. Espy

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West Chester, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Ferritic stainless steel having toughness and weldability
- Patent number 4,331,474
- Issue date May 25, 1982
- Armco Inc.
- Ronald H. Espy
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Copper and nitrogen containing austenitic stainless steel and fastener
- Patent number 4,295,769
- Issue date Oct 20, 1981
- Armco Inc.
- Joseph A. Douthett
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ferritic steel alloy with improved high temperature properties
- Patent number 4,261,739
- Issue date Apr 14, 1981
- Armco Inc.
- Joseph A. Douthett
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...