Patents by Inventor Natividad Gene Esparza

Natividad Gene Esparza 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 apparatus for determining route from a present location to a desired destination in a city
    Patent number: 4546439
    Abstract: The present invention relates to a method and apparatus for enabling a traveler to determine the correct route from his present location to a desired destination in a city. To this end, the traveler enters information identifying his desired destination into an information station located at his present location. The information station compares the entered information with information identifying all the streets in the city and dividing the city into adjacent zones. As a result of the comparison, the information station determines the zone in which the desired destination is located. A map corresponding to the identified zone is then provided to the traveler. The map contains both the map of the streets in that zone and information on how to reach the zone from the present location. The traveler then proceeds to the desired destination, using boards arranged at street intersections.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: October 8, 1985
    Inventor: Natividad Gene Esparza