William T. Grisham

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Huntsville, AL, US

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Patents Grantslast 30 patents

Information Patent Grant
Wireless danger proximity warning system and method
- Patent number 7,148,791
- Issue date Dec 12, 2006
- Time Domain Corp.
- William T. Grisham
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Railroad collision avoidance system and method for preventing train...
- Patent number 6,917,284
- Issue date Jul 12, 2005
- Time Domain Corp.
- William T. Grisham
- B61 - RAILWAYS
Information Patent Grant
Railroad collision avoidance system and method for preventing train...
- Patent number 6,759,948
- Issue date Jul 6, 2004
- Time Domain Corporation
- William T. Grisham
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Wireless danger proximity warning system and method
- Publication number 20050275513
- Publication date Dec 15, 2005
- William T. Grisham
- B60 - VEHICLES IN GENERAL
Information Patent Application
Railroad collision avoidance system and method for preventing train...
- Publication number 20040155760
- Publication date Aug 12, 2004
- William T. Grisham
- B61 - RAILWAYS
Information Patent Application
Railroad collision avoidance system and method for preventing train...
- Publication number 20030058131
- Publication date Mar 27, 2003
- Time Domain Corporation
- William T. Grisham
- B61 - RAILWAYS