Patents by Inventor Gregory Demetrious

Gregory Demetrious 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).

  • Directional information system
    Patent number: 4954958
    Abstract: The present invention relates to a method and system for enabling a user to determine a desired geographical route between supplied locations. To this end, a means is employed for supplying to a central processor information identifying geographic locations. The central processor, after correlating the identifying information to geographic locations, generates routing directions for travel between the two locations. The routing directions are made available for outputting to the user through a plurality of output devices.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: September 4, 1990
    Assignee: Hacowie Corporation
    Inventors: Charles Savage, Frank G. Barone, Jr., Gregory Demetrious, Vincent Volpe