Patents by Inventor Kenneth L. Eddy

Kenneth L. Eddy 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 dye image stabilization
    Patent number: 4042394
    Abstract: A photographic element is disclosed comprised of a support and at least one layer containing a photographic imaging dye or its precursor. The imaging dye is chosen to have an absorption peak below 590 nm. An azomethine dye having an absorption peak above 700 nm is associated with the imaging dye or its precursor within the photographic layer. The azomethine dye reduces the rate of fading of the imaging dye upon exposure to visible light. A process for stabilizing a photographic dye image is also disclosed.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: August 16, 1977
    Assignee: Eastman Kodak Company
    Inventors: Wendell F. Smith, Jr., Kenneth L. Eddy, Donald P. Harnish