Patents by Inventor Dietmar Maierhofer

Dietmar Maierhofer 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).

  • Method for verifying the validity of a ticket; mobile device
    Patent number: 11315126
    Abstract: A method for checking the validity of a ticket involves transferring information from a control entity to a mobile device. A code is computed on the basis of this information, of a derived key and of a property individual for the mobile device, the code being subsequently checked by the control entity.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 26, 2022
    Assignee: GIESECKE+DEVRIENT MOBILE SECURITY GMBH
    Inventors: Bernhard Inderst, Ullrich Martini, Dietmar Maierhöfer
  • Method for Verifying the Validity of a Ticket; Mobile Device
    Publication number: 20170316423
    Abstract: A method for checking the validity of a ticket involves transferring information from a control entity to a mobile device. A code is computed on the basis of this information, of a derived key and of a property individual for the mobile device, the code being subsequently checked by the control entity.
    Type: Application
    Filed: November 10, 2015
    Publication date: November 2, 2017
    Inventors: Bernhard INDERST, Ullrich MARTINI, Dietmar MAIERHÖFER
  • Method for transmitting a text message
    Publication number: 20010039191
    Abstract: A method for transmitting a text message from a first mobile radio terminal to a second mobile radio terminal in a mobile radio network linked to a data network, in particular to an IP network. The entered data being routed together with the telephone number and a data network address for the first mobile radio terminal to an associated service control point in the mobile radio/data network in order to check the memory content and also to perform a debit operation and to forward the text message.
    Type: Application
    Filed: December 5, 2000
    Publication date: November 8, 2001
    Inventor: Dietmar Maierhofer