Douglas Gordon Roberts

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Richmond, CA

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Patents Grantslast 30 patents

Information Patent Grant
Systems and method for controlling preemption of a traffic signal
- Patent number 8,884,783
- Issue date Nov 11, 2014
- Global Traffic Technologies, LLC
- Douglas Gordon Roberts
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Systems and Method for Controlling Preemption of a Traffic Signal
- Publication number 20120218126
- Publication date Aug 30, 2012
- Douglas Gordon Roberts
- G08 - SIGNALLING