Patents by Inventor Jefferey M. Stefan

Jefferey M. Stefan 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 navigation-enhanced directory assistance
    Publication number: 20030069690
    Abstract: The invention provides a method of providing navigation-enhanced directory assistance instructions to a mobile vehicle. A point of interest is selected from within a proximity region of a mobile vehicle location, based on a point of interest request. A plurality of routing instructions is determined based on the selected point of interest. At least one of the routing instructions is provided to the mobile vehicle in response to a routing option input.
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Applicant: General Motors Corporation
    Inventors: John J. Correia, Jefferey M. Stefan, Larry J. Tretyak