Patents by Inventor Stephan Heer

Stephan Heer 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).

  • Authenticity mark in the form of a luminescent substance
    Patent number: 8497012
    Abstract: A printed document of value having at least one authenticity feature in the form of a luminescent substance on the basis of host lattices which are doped with one or a plurality of ions. Since the host lattices are doped with different ions, exchange interactions between clusters of ions that occur leads to cooperative effects.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: July 30, 2013
    Assignee: Giesecke & Devrient GmbH
    Inventors: Stephan Heer, Thomas Giering, Kai Uwe Stock
  • Authenticity mark in the form of luminescent substances
    Patent number: 8367188
    Abstract: A printed document of value has an authenticity feature in the form of at least two luminescent substances on the basis of host lattices which are doped with one or a plurality of ions. By systematically changing the host lattices and/or ions of the (nd)3 electron configuration a specific setting of the luminescence properties of luminescent substances is possible, the combination of which permits a multiplicity of complex new authenticity features.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: February 5, 2013
    Assignee: Giesecke & Devrient GmbH
    Inventors: Stephan Heer, Thomas Giering, Kai Uwe Stock, Gregor Grauvogl
  • AUTHENTICITY MARK IN THE FORM OF A LUMINESCENT SUBSTANCE
    Publication number: 20100032935
    Abstract: The invention relates to a printed document of value having at least one authenticity feature in the form of a luminescent substance on the basis of host lattices which are doped with one or a plurality of ions. By suitably doping host lattices with different ions, exchange interactions between clusters of ions occur which can lead to cooperative effects.
    Type: Application
    Filed: October 9, 2007
    Publication date: February 11, 2010
    Inventors: Stephan Heer, Thomas Giering, Kai Uwe Stock
  • AUTHENTICITY MARK IN THE FORM OF LUMINESCENT SUBSTANCES
    Publication number: 20100026991
    Abstract: The invention relates to a printed document of value having an authenticity feature in the form of at least two luminescent substances on the basis of host lattices which are doped with one or a plurality of ions. By systematically changing the host lattices and/or ions of the (nd)3 electron configuration a specific setting of the luminescence properties of luminescent substances is possible, the combination of which permits a multiplicity of complex new authenticity features.
    Type: Application
    Filed: October 9, 2007
    Publication date: February 4, 2010
    Inventors: Stephan Heer, Thomas Giering, Kai Uwe Stock, Gregor Grauvogl