John Roby

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Northville, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Engine mount assembly
- Patent number 6,374,939
- Issue date Apr 23, 2002
- General Motors Corporation
- Frederick P. Hohnstadt
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydroformed side rail for a vehicle frame and method of manufacture
- Patent number 6,183,013
- Issue date Feb 6, 2001
- General Motors Corporation
- Steven K. Mackenzie
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...