Patents by Inventor Willaim K. Smothers

Willaim K. Smothers 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 photopolymer compositions and elements containing a ring-opening monomer
    Patent number: 4996120
    Abstract: Presence of a ring opening monomer polymerizable by free radical sigma-bond cleavage in a photopolymerizable composition improves volume reflection holograms prepared from the composition.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: February 26, 1991
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: Willaim K. Smothers, Bruce M. Monroe, Dominic M. Chan