Patents by Inventor Ralf Wondratschek

Ralf Wondratschek 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).

  • Method for authenticating a security element, and optically variable security element
    Patent number: 10019626
    Abstract: The invention relates to a method for authenticating an optically variable security element (1), in particular a diffractive security element, with the steps: a) capturing an image sequence with at least one individual image of the security element (1) by means of a sensor (31), in particular a hand-held device (3), preferably a smartphone, tablet or a PDA; b) checking whether at least one predetermined item of optical information is present in at least one individual image of the image sequence.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: July 10, 2018
    Assignees: LEONHARD KURZ STIFTUNG & CO. KG, OVD KINEGRAM AG, ADORSYS GMBH & CO. KG
    Inventors: Andreas Schilling, Uwe Frieser, Benno Schmitzer, Wayne Robert Tompkin, Jurgen Metzger, Ralf Wondratschek, Alexander Gugel
  • Method for Authenticating a Security Element, and Optically Variable Security Element
    Publication number: 20160307035
    Abstract: The invention relates to a method for authenticating an optically variable security element (1), in particular a diffractive security element, with the steps: a) capturing an image sequence with at least one individual image of the security element (1) by means of a sensor (31), in particular a hand-held device (3), preferably a smartphone, tablet or a PDA; b) checking whether at least one predetermined item of optical information is present in at least one individual image of the image sequence.
    Type: Application
    Filed: November 28, 2014
    Publication date: October 20, 2016
    Inventors: Andreas Schilling, Uwe Frieser, Benno Schmitzer, Wayne Robert Tompkin, Jurgen Metzger, Ralf Wondratschek, Alexander Gugel