David C. Allen, Sr.

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Wetumpka, AL, US

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Patents Grantslast 30 patents

Information Patent Grant
System and synchronization process for inductive loops in a multila...
- Patent number 7,764,197
- Issue date Jul 27, 2010
- United Toll Systems, Inc.
- Jim Allen
- G08 - SIGNALLING
Information Patent Grant
System and synchronization process for inductive loops in a multila...
- Patent number 7,324,015
- Issue date Jan 29, 2008
- Jim Allen
- G08 - SIGNALLING
Information Patent Grant
Ferromagnetic loop
- Patent number 7,071,840
- Issue date Jul 4, 2006
- Jim Allen
- G08 - SIGNALLING
Information Patent Grant
Ferromagnetic loop
- Patent number 7,015,827
- Issue date Mar 21, 2006
- Jim Allen
- G08 - SIGNALLING
Information Patent Grant
Ferromagnetic loop
- Patent number 6,864,804
- Issue date Mar 8, 2005
- Jim Allen
- G08 - SIGNALLING