Stephen Harry Verhoff

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Monclova, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Furnace for vacuum carburizing with unsaturated aromatic hydrocarbons
- Patent number 7,267,793
- Issue date Sep 11, 2007
- Surface Combustion, Inc.
- Ralph P. Poor
- C21 - METALLURGY OF IRON
Information Patent Grant
Vacuum furnace for carburizing with hydrocarbons
- Patent number 7,204,952
- Issue date Apr 17, 2007
- Surface Combustion, Inc.
- Ralph P. Poor
- C21 - METALLURGY OF IRON
Information Patent Grant
Vacuum carburizing with unsaturated aromatic hydrocarbons
- Patent number 7,033,446
- Issue date Apr 25, 2006
- Surface Combustion, Inc.
- Ralph Paul Poor
- C21 - METALLURGY OF IRON
Information Patent Grant
Vacuum carburizing with napthene hydrocarbons
- Patent number 6,991,687
- Issue date Jan 31, 2006
- Surface Combustion, Inc.
- Ralph Paul Poor
- C21 - METALLURGY OF IRON
Information Patent Grant
Ion carburizing
- Patent number 5,127,967
- Issue date Jul 7, 1992
- Surface Combustion, Inc.
- Stephen H. Verhoff
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Ion carburizing
- Patent number 4,853,046
- Issue date Aug 1, 1989
- Surface Combustion, Inc.
- Stephen H. Verhoff
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Furnace for vacuum carburizing with unsaturated aromatic hydrocarbons
- Publication number 20060180961
- Publication date Aug 17, 2006
- Surface Combustion, Inc.
- Ralph P. Poor
- C21 - METALLURGY OF IRON
Information Patent Application
Vacuum carburizing with napthene hydrocarbons
- Publication number 20030089426
- Publication date May 15, 2003
- Ralph Paul Poor
- C21 - METALLURGY OF IRON
Information Patent Application
Vacuum carburizing with unsaturated aromatic hydrocarbons
- Publication number 20030020214
- Publication date Jan 30, 2003
- Ralph Paul Poor
- C21 - METALLURGY OF IRON