Patents by Inventor David Lienesch

David Lienesch 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 document
    Patent number: 9987872
    Abstract: A security document includes a substrate, and an imaging thermal coating on at least a portion of the surface of the substrate for thermal printing on the security document. The imaging thermal coating is soluble in one or more solvents. A warning message is printed on the substrate in an ink which is substantially insoluble in the one or more solvents. An obscuring coating on the substrate covers the warning message such that the warning message is not apparent to an observer. The obscuring coating is soluble in the one or more solvents, such that the obscuring coating is removed from the substrate if the document is subjected to washing with the one or more solvents to remove printed images on the imaging thermal coating. By this arrangement, an attempt to alter the security document by washing the security document with the one or more solvents is made apparent.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: June 5, 2018
    Assignee: Taylor Communications, Inc.
    Inventors: Rajendra Mehta, John Harden, David Lienesch, Brian Berg
  • SECURITY DOCUMENT
    Publication number: 20140070525
    Abstract: A security document includes a substrate, and an imaging thermal coating on at least a portion of the surface of the substrate for thermal printing on the security document. The imaging thermal coating is soluble in one or more solvents. A warning message is printed on the substrate in an ink which is substantially insoluble in the one or more solvents. An obscuring coating on the substrate covers the warning message such that the warning message is not apparent to an observer. The obscuring coating is soluble in the one or more solvents, such that the obscuring coating is removed from the substrate if the document is subjected to washing with the one or more solvents to remove printed images on the imaging thermal coating. By this arrangement, an attempt to alter the security document by washing the security document with the one or more solvents is made apparent.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Applicant: THE STANDARD REGISTER COMPANY
    Inventors: Rajendra Mehta, John Harden, David Lienesch, Brian Berg