Patents Assigned to GIESECKE & DEVERIENT GMBH
  • Security Paper and a Method for the Production Thereof
    Publication number: 20080216976
    Abstract: The invention relates to a security paper for manufacturing security or value documents, such as banknotes, identification cards and the like, having at least two through openings (12, 16). According to the present invention, a first (12) of the through openings is produced during paper manufacture and exhibits characteristic irregularities in the edge region (14), while a second (16) of the through openings is produced after paper manufacture, by cutting or punching, having a sharply delimited edge region (18).
    Type: Application
    Filed: May 3, 2006
    Publication date: September 11, 2008
    Applicant: GIESECKE & DEVERIENT GMBH
    Inventors: Jurgen Ruck, Manfred Heim, Andreas Pretsch