Patents by Inventor Gustav Dax

Gustav Dax 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).

  • Data carrier
    Patent number: 6749925
    Abstract: The invention relates to different methods for distortion-free production of data carriers having at least in partial areas a transparent plastic layer with a surface structure in the form of a lens structure. The surface structure can be produced by cutting method or embossed by applying heat and pressure. Alternatively the surface structure can be produced as a separate element which is connected after its production with the data carrier.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: June 15, 2004
    Assignee: Giesecke & Devrient GmbH
    Inventors: Joachim Hoppe, Yahya Haghiri-Tehrani, Arno Hohmann, Josef Strassmaier, Wolfgang Gauch, Matthias Bergmann, Gustav Dax
  • METHOD FOR PRODUCING A DATA CARRIER
    Publication number: 20030096084
    Abstract: The invention relates to different methods for distortion-free production of data carriers having at least in partial areas a transparent plastic layer with a surface structure in the form of a lens structure. The surface structure can be produced by cutting methods or embossed by applying heat and pressure. Alternatively the surface structure can be produced as a separate element which is connected after its production with the data carrier.
    Type: Application
    Filed: July 16, 1997
    Publication date: May 22, 2003
    Inventors: JOACHIM HOPPE, YAHYA HAGHIRI-TEHRANI, ARNO HOHMANN, JOSEF STRASSMAIER, WOLFGANG GAUCH, MATTHIAS BERGMANN, GUSTAV DAX