John R. Keough

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Ann Arbor, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing locally austempered ductile iron
- Patent number 8,372,222
- Issue date Feb 12, 2013
- Ajax Tocco Magnethermic Corporation
- George D. Pfaffmann
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
LOCALLY AUSTEMPERED DUCTILE IRON
- Publication number 20100084059
- Publication date Apr 8, 2010
- George D. Pfaffman
- C21 - METALLURGY OF IRON