John D. Bowman

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Dorr, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Heat treatment strategically strengthened door beam
- Patent number 7,451,630
- Issue date Nov 18, 2008
- Benteler Automotive Corporation
- Todd W. J. Tjoelker
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Heat treatment strategically strengthened door beam
- Patent number 6,918,224
- Issue date Jul 19, 2005
- Benteler Automotive Corporation
- Todd W. J. Tjoelker
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Heat treatment strategically strengthened door beam
- Publication number 20050081479
- Publication date Apr 21, 2005
- Todd W.J. Tjoelker
- B60 - VEHICLES IN GENERAL
Information Patent Application
Heat treatment strategically strengthened door beam
- Publication number 20030205910
- Publication date Nov 6, 2003
- Todd W.J. Tjoelker
- B60 - VEHICLES IN GENERAL