Patents by Inventor Edward J. Kler

Edward J. Kler 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).

  • Holographic tamper-evident label
    Patent number: 6087075
    Abstract: A tamper-evident label includes two parts that are separated from each other when an article to which they are attached is opened. The two parts have matching surface relief patterns secured to each other at an interface, and the indexes of refraction of the parts are substantially equal such that the patterns have no optical effect when attached to each other. When the two parts are separated, however, the patterns generate an image drawing attention to their separation. The patterns are preferably holographic.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: July 11, 2000
    Assignee: Label Systems, Inc.
    Inventors: Edward J. Kler, David W. Robbins, Robert R. Carey