Patents by Inventor John Rieth

John Rieth 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 element containing thinb transparent magnetic recording layer and method for the preparation thereof
    Patent number: 5254449
    Abstract: A photographic element comprising a photosensitive layer, a flexible cellulose organic ester support film, and a substantially transparent magnetic recording layer having a dried thickness of less than about 1.5 micron exhibits improved magnetic and photographic performance and is particularly valuable as a color or black and white negative or reversal film.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: October 19, 1993
    Assignee: Eastman Kodak Company
    Inventors: Robert O. James, John Rieth