Patents by Inventor David Strumwasser

David Strumwasser 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).

  • Secure virtual transfer of subscriber credentials
    Patent number: 9986421
    Abstract: To virtually transfer subscriber identity module (“SIM”) credentials from an active device to an inactive device in order to share carrier network access, temporary identifiers and SIM credentials are transferred using secure connections and an optional public-private key pair with encryption at the transport layer. In an example, a carrier identification (“ID”) server receives a temporary identifier, such as a temporary international mobile subscriber identity (“TIMSI”), from an inactive device via a carrier network. The carrier ID server authenticates the inactive device using the TIMSI by issuing a network challenge. Next, the carrier ID server verifies with an active device associated with the inactive device that the active device distributed the TIMSI. After authenticating and verifying with both devices, the carrier ID server activates the inactive device by allowing the TIMSI to behave as virtual SIM credentials on the carrier network.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 29, 2018
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Yuk Lun Li, Christopher M. Schmidt, Ji Hoon Kim, Manuel E. Caceres, Paul Berman, Mohammad Raheel Khalid, Christian Egeler, Taussif Khan, David Strumwasser
  • SECURE VIRTUAL TRANSFER OF SUBSCRIBER CREDENTIALS
    Publication number: 20160164883
    Abstract: To virtually transfer subscriber identity module (“SIM”) credentials from an active device to an inactive device in order to share carrier network access, temporary identifiers and SIM credentials are transferred using secure connections and an optional public-private key pair with encryption at the transport layer. In an example, a carrier identification (“ID”) server receives a temporary identifier, such as a temporary international mobile subscriber identity (“TIMSI”), from an inactive device via a carrier network. The carrier ID server authenticates the inactive device using the TIMSI by issuing a network challenge. Next, the carrier ID server verifies with an active device associated with the inactive device that the active device distributed the TIMSI. After authenticating and verifying with both devices, the carrier ID server activates the inactive device by allowing the TIMSI to behave as virtual SIM credentials on the carrier network.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 9, 2016
    Inventors: Yuk Lun Li, Christopher M. Schmidt, Ji Hoon Kim, Manuel E. Caceres, Paul Berman, Mohammad Raheel Khalid, Christian Egeler, Taussif Khan, David Strumwasser