Patents by Inventor Martin Henry Van Leeuwen

Martin Henry Van Leeuwen 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).

  • Number portability for an IMS network
    Patent number: 7969967
    Abstract: An apparatus and method for number portability for an IMS network. In one example the method may have the steps of: processing all calls with E.164 numbers in a BGCF (Breakout Gateway Control Function); executing digit analysis on a respective E.164 number in the BGCF; and querying, by the BGCF, a NPDB (portable number database) to retrieve a routing number if the respective E.164 number is ported.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: June 28, 2011
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: John Douglas, Subhashish Ghosh, Vickie Lynn Kolka, Martin Henry Van Leeuwen