Patents by Inventor Tomasz Jannson

Tomasz Jannson 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: 5230969
    Abstract: A holographic recording material, comprising a dichromated gelatin-polymer graft, is used in a volume hologram. The gelatin may comprise naturally occurring gelatin primarily made up of glycerin, proline, and hydroxyproline. The polymerizable monomers used to make up the gelatin polymer graft may comprise 2-hyroxyethylmethacralate, acrylamide, acrylic acid, or vinyl acetate.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: July 27, 1993
    Assignee: Physical Optics Corporation
    Inventors: Gajendra Savant, Tomasz Jannson