Patents by Inventor Uwe Gruszczynski

Uwe Gruszczynski 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 manufacturing a security paper
    Patent number: 8083894
    Abstract: The present invention relates to a method for manufacturing a security paper, for security or value documents, that exhibits at least one through opening (12) having characteristic irregularities (14) in the edge region. According to the present invention, a paper web having thin sites in the form of the outline of the desired shape of the at least one through opening (12) is formed on a paper mold, and the paper web dewatered after sheet formation, the region delimited by the thin sites being removed from the paper web by the occurring forces.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: December 27, 2011
    Assignee: Giesecke & Devrient GmbH
    Inventors: Uwe Gruszczynski, Thomas Bodendieck
  • METHOD FOR PRODUCING ANTIFALSIFICATION PAPERS, PAPER MOULD, AND FORMING ELEMENT FOR PAPER MOULD
    Publication number: 20090236061
    Abstract: The present invention relates to a method for manufacturing a security paper, for security or value documents, that exhibits at least one through opening (12) having characteristic irregularities (14) in the edge region. According to the present invention, a paper web having thin sites in the form of the outline of the desired shape of the at least one through opening (12) is formed on a paper mold, and the paper web dewatered after sheet formation, the region delimited by the thin sites being removed from the paper web by the occurring forces.
    Type: Application
    Filed: July 3, 2006
    Publication date: September 24, 2009
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Uwe Gruszczynski, Thomas Bodendieck