Patents by Inventor Anton N. Stadelmann

Anton N. Stadelmann 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).

  • Roaming method and devices appropriate therefor
    Patent number: 6738622
    Abstract: Telecommunication method which enables a subscriber of a home mobile radio network (HPLMN) to connect to a visited mobile radio network (VPLMN, VPLMN′) without a roaming agreement with the home mobile radio network (HPLMN) in that the subscriber is assigned a first mobile subscriber identification (IMSI1) from the number range of his home mobile radio network (HPLMN) and a second IMSI number (IMSI2) from the number range of a partner network (PPLMN), the partner network having additional roaming agreements, and a common call number (MSISDN) being allocated to the two said IMSI numbers (IMSI1, IMSI2). The two IMSI numbers (IMSI1, IMSI2) may preferably be stored on a common or on different identification modules.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: May 18, 2004
    Assignee: Swisscom AG
    Inventors: Anton N. Stadelmann, Werner Hirzel, Walter Heutschi