Patents by Inventor George Richard Secrist

George Richard Secrist 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).

  • Photographic image transfer elements containing neutralizing layers comprising particulate materials
    Patent number: 4029504
    Abstract: A neutralizing layer containing particulate diatomaceous earth, exploded volcanic rock or hydrous calcium silicate is described for use in color diffusion transfer film units, dye image-receiving elements and cover sheets.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: June 14, 1977
    Assignee: Eastman Kodak Company
    Inventors: George Richard Secrist, Richard Warren Berls, Brooke Pershing Schlegel