Patents by Inventor David I. Wortman

David I. Wortman 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).

  • Display incorporating reflective polarizer
    Patent number: 7852560
    Abstract: A display includes a liquid crystal display panel, an optical cavity producing substantially collimated light and a birefringent reflective polarizer.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: December 14, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Olester Benson, Jr., Michael F. Weber, Carl A. Stover, David I. Wortman, Sanford Cobb, Jr.