Roger R. Wills

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Solon, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Work hardened poppet exhaust valve
- Patent number 6,635,128
- Issue date Oct 21, 2003
- TRW Inc.
- William Neumann
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Iron aluminum based engine intake valves and its manufacturing method
- Patent number 5,425,821
- Issue date Jun 20, 1995
- TRW Inc.
- Mohan Kurup
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Iron aluminum based engine intake valves and method of making thereof
- Patent number 5,328,527
- Issue date Jul 12, 1994
- TRW Inc.
- Mohan Kurup
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for making exhaust valves
- Patent number 5,257,453
- Issue date Nov 2, 1993
- TRW Inc.
- William Neumann
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for producing ceramic composites from microcomposite partic...
- Patent number 4,729,973
- Issue date Mar 8, 1988
- Battelle Memorial Institute
- Marion Brockway
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Hydrothermal method for producing stabilized zirconia
- Patent number 4,619,817
- Issue date Oct 28, 1986
- Battelle Memorial Institute
- Edgel P. Stambaugh
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES