Patents by Inventor Leonid Entov

Leonid Entov 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).

  • Real-time surveying/earth moving system
    Patent number: 6191732
    Abstract: The present invention includes a method and apparatus which determines the tree-dimensional (x, y, z coordinate) position of the receiving position of a GPS antenna on an earth-moving machine or a vehicle, determines the tilt of the machine or vehicle in real time (tilt may vary from point to point), and utilizes this data to calculate the three-dimesional (x, y, z coordinate) position of a point of the earth's surface disposed beneath the machine or vehicle. In a preferred embodiment, the present invention derives and displays the distance between the actual elevation of this point and the desired surface elevation.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: February 20, 2001
    Assignee: Carlson Software
    Inventors: R. Bruce Carlson, David S. Carlson, Leonid Entov