Patents by Inventor Andreas Hanelt

Andreas Hanelt 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).

  • Dewatering screen and method for manufacturing the same
    Patent number: 8702906
    Abstract: The present invention relates to a dewatering screen for manufacturing paper having multi-level watermarks, having a carrier mold (54) that exhibits, in a fractional region, a multi-level relief (30) in the form of the watermark to be produced. According to the present invention, it is provided that the multi-level relief is formed by an injection-molded, perforated (40) watermark insert (30).
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: April 22, 2014
    Assignee: Giesecke & Devrient GmbH
    Inventors: Andre Gregarek, Andreas Hanelt, Bernhard Wiedner, Theodor Burchard, Andreas Aigner, Gunther Wild
  • Dewatering screen and method for the production thereof
    Patent number: 8349132
    Abstract: The present invention relates to a dewatering screen for manufacturing paper having multi-level watermarks, having a carrier mold (54) that exhibits, in a fractional region, a multi-level relief (30) in the form of the watermark to be produced. According to the present invention, it is provided that the multi-level relief is formed by an injection-molded, perforated (40) watermark insert (30).
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 8, 2013
    Assignee: Giesecke & Devrient GmbH
    Inventors: Andre Gregarek, Andreas Hanelt, Bernhard Wiedner, Theodor Burchard, Andreas Aigner, Gunther Wild