Patents by Inventor Joseph Riedl

Joseph Riedl 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).

  • 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
  • Identity card with a humanly visible authenticity feature
    Patent number: 5944356
    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: October 23, 1995
    Date of Patent: August 31, 1999
    Assignee: GAO Gesellschaft fur Automation und Organisation
    Inventors: Matthias Bergmann, Horst Henkenschuh, Reinhard Krusche, Joseph Riedl