Patents by Inventor Robert J. Tefft

Robert J. Tefft has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for vehicle emissions testing at a kiosk through on-board diagnostics unit inspection
    Patent number: 7469171
    Abstract: A decentralized method and system for vehicle emissions testing uses the OBD unit of the vehicle to be tested and includes a remote data storage location in communication with a plurality of decentralized inspection stations or test locations. Each inspection location is designed to allow for “self-service” inspection through a kiosk that includes all of the hardware and software necessary to carry out the testing process and to communicate test data and information to the remote storage location.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: December 23, 2008
    Assignee: Gordon-Darby Systems, Inc.
    Inventors: Robert J. Tefft, S. Jay Gordon
  • Method and system for vehicle emission testing
    Patent number: 7071002
    Abstract: A method and system for vehicle emission testing measures pollutant concentration, but then provides for conversion of the measured pollutant concentration into its corresponding pollutant mass, thereby allowing for the calculation of a vehicle's emission test scores for one or more common pollutants in units of mass per distance. Through the use of the method and system of the present invention, significantly more accurate results can be obtained as compared to prior art test methods, and without the implementation, operating, and maintenance costs of comparable test methods.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: July 4, 2006
    Assignee: Gordon-Darby Systems, Inc.
    Inventors: Robert J. Tefft, S. Jay Gordon, Clifton Mahaffey, Thomas C. Austin, Thomas R. Carlson
  • Method and system for vehicle emissions testing through on-board diagnostics unit inspection
    Patent number: 6775602
    Abstract: A decentralized method and system for vehicle emissions testing preferably uses the OBD unit of the vehicle to be tested. A preferred implementation of the method and system includes a remote overview or supervisory location in communication with a plurality of decentralized inspection stations or test locations. Supervisory personnel at the remote overview location are in video and data communication with the inspection location and thus are able to monitor and audit all aspects of the OBD testing process, including a review of the actual test data.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: August 10, 2004
    Assignee: Gordon-Darby Systems, Inc.
    Inventors: S. Jay Gordon, Jr., Clifton Mahaffey, Robert J. Tefft, Robert Kennedy, Jess Yowell
  • Method and system for vehicle emissions testing through on-board diagnostics unit inspection
    Publication number: 20040015278
    Abstract: A decentralized method and system for vehicle emissions testing preferably uses the OBD unit of the vehicle to be tested. A preferred implementation of the method and system includes a remote overview or supervisory location in communication with a plurality of decentralized inspection stations or test locations. Supervisory personnel at the remote overview location are in video and data communication with the inspection location and thus are able to monitor and audit all aspects of the OBD testing process, including a review of the actual test data.
    Type: Application
    Filed: July 8, 2002
    Publication date: January 22, 2004
    Inventors: S. Jay Gordon, Clifton Mahaffey, Robert J. Tefft, Robert Kennedy, Jess Yowell
  • Method and system for vehicle emission testing
    Patent number: 6623975
    Abstract: A method and system for vehicle emission testing measures pollutant concentration, but then provides for conversion of the measured pollutant concentration into its corresponding pollutant mass, thereby allowing for the calculation of a vehicle's emission test scores for one or more common pollutants in units of mass per distance. Through the use of the method and system of the present invention, significantly more accurate results can be obtained as compared to prior art test methods, and without the implementation, operating, and maintenance costs of comparable test methods.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: September 23, 2003
    Assignee: Gordon-Darby Systems, Inc.
    Inventors: Robert J. Tefft, S. Jay Gordon, Clifton Mahaffey