Patents by Inventor Cynthia A. MacMillan

Cynthia A. MacMillan 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).

  • Thermally bleachable yellow filter dye compositions barbituric acid arylidene dyes and base precursors
    Patent number: 6730462
    Abstract: This invention relates to a photothermographic element comprising a support, at least one photothermographic imaging layer, and at least one filter layer, wherein the filer layer comprises a heat-bleachable composition comprising a barbituric acid arylidene filter dye is in the presence of an effective amount of a base precursor.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: May 4, 2004
    Assignee: Eastman Kodak Company
    Inventors: Ramanuj Goswami, Margaret J. Helber, Cynthia A. MacMillan, Mary C. Brick