Clifton Mahaffey

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Louisville, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for vehicle emission testing
- Patent number 7,071,002
- Issue date Jul 4, 2006
- Gordon-Darby Systems, Inc.
- Robert J. Tefft
- G01 - MEASURING TESTING
Information Patent Grant
Method and system for vehicle emissions testing through on-board di...
- Patent number 6,775,602
- Issue date Aug 10, 2004
- Gordon-Darby Systems, Inc.
- S. Jay Gordon
- G01 - MEASURING TESTING
Information Patent Grant
Method and system for vehicle emission testing
- Patent number 6,623,975
- Issue date Sep 23, 2003
- Gordon-Darby Systems, Inc.
- Robert J. Tefft
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Method and system for vehicle emissions testing through on-board di...
- Publication number 20040015278
- Publication date Jan 22, 2004
- S. Jay Gordon
- G01 - MEASURING TESTING