Patents Assigned to GAO Gesellschaft f{umlaut over (u)}r Automation und Organisation
  • Compound film for an identity card with a humanly visible authenticity feature
    Patent number: 6179338
    Abstract: A multilayer data carrier is described which bears general printed data and furthermore has a transparent layer containing additives which are absorbent for a laser beam. The transparent layer is designed so that it exists in the card compound as a thin, nonself-supporting layer.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: January 30, 2001
    Assignee: GAO Gesellschaft f{umlaut over (u)}r Automation und Organisation
    Inventors: Matthias Bergmann, Horst Henkenschuh, Reinhard Krusche, Joseph Riedl