Patents by Inventor Yea-Cheiung E. Chen

Yea-Cheiung E. Chen 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).

  • System and method for providing portable telephone number service
    Patent number: 5572579
    Abstract: In an Advanced Intelligent Telephone Network system, switching points are programmed to trigger a query to a Service Control Point ("SCP") in response to a dialed "500" number. The SCP performs a data request of an outside database storing service provider information, obtaining a service provider identification or a routing number corresponding to the dialed "500" number. The SCP then transmits a switching instruction to the service system point to route the call to the appropriate destination number.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Bell Communications Research, Inc.
    Inventors: Richard A. Orriss, Margaret K. Balazs, Laura L. T. Castrovinci, Kathleen D. Cebulka, Yea-Cheiung E. Chen, Neal N. Crystal, Kelly J. Gaylord, George W. Hartley