Patents by Inventor Yvonne P Stoetzel

Yvonne P Stoetzel 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).

  • Management of traffic signals at road intersection to avoid blocking vehicles
    Patent number: 8140251
    Abstract: A computer controlled system for managing traffic signals at the intersection of at least two traffic lanes to avoid collisions between motor vehicles in intersecting lanes. An implementation with means for controlling traffic signals at the intersection to permit vehicles in each of the intersecting traffic lanes a time period to pass through the intersection, means for detecting the presence of a vehicle in the intersection beyond said permitted time period, and means responsive to a detection of the presence of the vehicle, for controlling the traffic signals to stop other vehicles from passing through the intersection.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: March 20, 2012
    Assignee: International Business Machines Corporation
    Inventors: Michael A Paolini, Yvonne P Stoetzel, Cristi N Ullmann