Patents by Inventor Harry O. Hansen

Harry O. Hansen 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).

  • Telephone call routing and charging system
    Patent number: 4410765
    Abstract: A telephone call routing and charging system using processor circuitry can automatically select the most economical route for individual telephone calls. The system includes a signal direction detector for automatically determining the time span of a call for charge purposes from the time the call is answered to the time the call is terminated.
    Type: Grant
    Filed: June 4, 1981
    Date of Patent: October 18, 1983
    Assignee: United Networks, Inc.
    Inventors: Alfred M. Hestad, Harry O. Hansen