Patents by Inventor Andrew Michael Weber

Andrew Michael Weber 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).

  • Patent number: 5930011
    Abstract: The present invention relates to holographic multicolor optical elements for use as multicolor filters in liquid crystal displays and methods of making the elements. The elements can be used as multicolor reflective or transmission filters The elements can have one, two, three or more holographic recording film layers Each layer comprises at least first and second pixel volumes containing holographic mirrors and preferably third pixel volumes containing a holographic mirror.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: July 27, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William John Gambogi, Jr., Steven Robert Mackara, Paul James Martin, Andrew Michael Weber, Torence John Trout
  • Patent number: 5725970
    Abstract: Broad band reflection holograms and process for producing broad band reflection holograms in photosensitive elements comprising photopolymer photosensitive layers are disclosed. These holograms may be used to form very bright display holograms, ultraviolet, visible and infrared rejection filters, and holographic security devices, as well as may be used in a wide variety of other applications.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: March 10, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul James Martin, Robert George Melega, Andrew Michael Weber