Patents by Inventor Jurgen Ruck

Jurgen Ruck 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).

  • Security element and method for producing the same
    Patent number: 8622435
    Abstract: The present invention relates to a security element (30) for securing valuable articles, having a first layer (13), composed of cholesteric liquid crystal material, that is present at least in some areas, a second layer (14), composed of liquid crystal material, that is present at least in some areas, and a further layer (22), having a machine-readable feature, that is present at least in some areas and that is covered at least in some areas by the first and second layer composed of liquid crystal material.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: January 7, 2014
    Assignee: Giesecke & Devrient GmbH
    Inventors: Theodor Burchard, Winfried Hoffmuller, Thorsten Pillo, Manfred Heim, Friedrich Kretschmar, Jurgen Ruck
  • Multi-Ply Security Paper
    Publication number: 20090001709
    Abstract: The present invention relates to multi-ply security paper for manufacturing security or value documents, such as banknotes, identification cards and the like. Into a first paper ply (52) is introduced an endless security element (54) that is freely accessible on at least one side of the paper ply (52). The first paper ply (52) is covered on the freely accessible side of the security element (54) by a second paper ply (56), and the second paper ply (56) exhibits one or more openings (58) in the region of the security element (54).
    Type: Application
    Filed: March 14, 2006
    Publication date: January 1, 2009
    Applicant: Giesecke & Devrient GmbH
    Inventors: Friedrich Kretschmar, Mario Keller, Ralf Liebler, Jurgen Ruck, Wolfgang Wensauer, Theodor Burchard, Thomas Bodendieck, Gregor Grauvogl, Horst Reigl
  • 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
  • Security Element and Method for Producing the Same
    Publication number: 20080054621
    Abstract: The invention relates to a security element (30) for securing valuables. Said element comprises at least one at least partial first layer (13) from a cholesteric liquid-crystalline material, an at least partial second layer (14) from a liquid-crystal material, and an at least partial additional layer (22) having a machine-readable feature that is at least partially covered by the first and second layer from the liquid-crystalline material.
    Type: Application
    Filed: August 8, 2005
    Publication date: March 6, 2008
    Applicant: Giesecke & Devrient GMBH
    Inventors: Theodor Burchard, Winfried Hoffmuller, Thorsten Pillo, Manfred Heim, Friedrich Kretschmar, Jurgen Ruck
  • Security Element Comprising a Support
    Publication number: 20070246933
    Abstract: The present invention relates to a security element (20) for securing security papers, value documents and the like, having a substrate (22). According to the present invention, the substrate (22) is provided with an authenticating mark (24, 26) that, in transmitted light, imparts a first optical impression and, in reflected light, against a predefined and easily accessible background, imparts a second optical impression that differs significantly from the first optical impression.
    Type: Application
    Filed: August 8, 2005
    Publication date: October 25, 2007
    Applicant: Giesecke & Devrient GMBH
    Inventors: Manfred Heim, Jurgen Ruck, Theodor Burchard