Victor D. Levin

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Highland Hts., 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
Engine valve and method for making the same
- Patent number 5,823,158
- Issue date Oct 20, 1998
- TRW Inc.
- Rudy J. Heimann
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Poppet valve with embossed neck structure
- Patent number 5,771,852
- Issue date Jun 30, 1998
- TRW Inc.
- Rudy J. Heimann
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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