Patents by Inventor Jürgen Karl Stahl

Jürgen Karl Stahl 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).

  • Security thread for data carriers, data carriers, and production of said data carriers
    Patent number: 10850492
    Abstract: Into a plastic card (1) of polycarbonate layers (10; 11; 12) there is laminated a security thread (3) by applying pressure and temperature, the security thread itself having a carrier foil (5) of polycarbonate and a coating (6) that is borne by the carrier foil and conveys holographic information. The connection of the polycarbonate carrier foil (5) of the security thread with the polycarbonate layer (10; 11; 12) of the data carrier adjoining said carrier foil takes place without using an adhesive or primer.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: December 1, 2020
    Assignee: GIESECKE+DEVRIENT MOBILE SECURITY GMBH
    Inventors: Günter Endres, Jürgen Karl Stahl, Lars Hoffmann
  • SECURITY THREAD FOR DATA CARRIERS, DATA CARRIERS, AND PRODUCTION OF SAID DATA CARRIERS
    Publication number: 20130113201
    Abstract: Into a plastic card (1) of polycarbonate layers (10; 11; 12) there is laminated a security thread (3) by applying pressure and temperature, the security thread itself having a carrier foil (5) of polycarbonate and a coating (6) that is borne by the carrier foil and conveys holographic information. The connection of the polycarbonate carrier foil (5) of the security thread with the polycarbonate layer (10; 11; 12) of the data carrier adjoining said carrier foil takes place without using an adhesive or primer.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 9, 2013
    Applicant: GLESECKE & DEVRIENT GMBH
    Inventors: Günter Endres, Jürgen Karl Stahl, Lars Hoffmann