Patents by Inventor William C. Morwald

William C. Morwald 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).

  • Continually variable demetallization of metallized films and similar objects
    Patent number: 7525705
    Abstract: A method of generating a variable demetallized pattern in a holographic web and a security device using such method. A holographic microstructure pattern is imparted to an oligomer disposed on a surface of a substrate. A metal layer, such as aluminum, is deposited to the holographic microstructure pattern of the substrate and then covered with a variable resist pattern. The variable demetallized pattern in the holographic web is then generated by removing the metal layer not covered by said variable resist pattern.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: April 28, 2009
    Assignee: JDS Uniphase Corporation
    Inventors: William C. Morwald, Brian Mentz