Philip Jeffrey McQueen

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San Rafael, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Rail pad and method for strain attenuation
- Patent number 7,331,534
- Issue date Feb 19, 2008
- Philip Jeffrey McQueen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Rail pad and method for strain attentuation
- Patent number 6,481,637
- Issue date Nov 19, 2002
- Philip Jeffrey McQueen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Rail pad & method for strain attenuation
- Publication number 20050098648
- Publication date May 12, 2005
- Philip Jeffrey McQueen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES