Patents by Inventor Ann M. Cullinan

Ann M. Cullinan 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).

  • Container having photographic conditioning solution concentrate
    Patent number: 5578427
    Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at .ltoreq.450 g/l, a sulfite at from 0 to 100 g/l, a bleach accelerating agent at .ltoreq.13.5, and a metal ion chelating agent at .ltoreq.45 g/l.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: November 26, 1996
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Charles M. Darmon, Rosa P. Sauter, Charles F. Leith
  • Photographic conditioning solution concentrate containing bleach accelerator and formaldehyde precursor and method of use
    Patent number: 5552264
    Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at 200 to 450 g/l, a sulfite at from 40 to 100 g/l, a bleach accelerating agent at 1.5 to 13.5, and a metal ion chelating agent at 5 to 45 g/l.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: September 3, 1996
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Charles M. Darmon, Rosa P. Sauter, Charles F. Leith
  • Process for stabilizing photographic elements
    Patent number: 5037725
    Abstract: A process for stabilizing the magenta dye image in a photographic color element comprises the step of treating the element after the step of color developing and prior to the step of bleaching or bleach-fixing with an aqueous solution that has a pH in the range of 7 to 10 and contains an effective amount of an alkali metal formaldehyde bisulfite.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: August 6, 1991
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Charles M. Darmon, William G. Henry, Paul A. Schwartz
  • Bleach-accelerating compositions containing a dye-stabilizing agent and use thereof in photographic color processing
    Patent number: 4975356
    Abstract: Improved bleach-accelerating compositions that are especially useful in the reversal color processing of photographic elements are comprised of a bleach-accelerating agent and a dye-stabilizing agent. Formaldehyde precursors function as particularly effective dye-stabilizing agents in such compositions. The bleach-accelerating composition is utilized subsequent to the color developing step and prior to the bleaching step and serves to enhance the effectiveness of the bleaching step and to provide improved dye stability.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: December 4, 1990
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Paul A. Schwartz
  • Bleaching compositions containing a dye-stabilizing agent and use thereof in photographic color processing
    Patent number: 4960682
    Abstract: Improved photographic bleaching compositions for use in the color processing of photographic elements comprise an aqueous solution containing a photographic bleaching agent, such as, for example, an ammonium or alkali metal salt of a ferric complex of an aminopolycarboxylic acid, and a dye-stabilizing amount of a formaldehyde percursor.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: October 2, 1990
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Paul A. Schwartz
  • Bleach-accelerating compositions containing a dye-stabilizing agent and use thereof in photographic color processing
    Patent number: 4921779
    Abstract: Improved bleach-accelerating compositions that are especially useful in the reversal color processing of photographic elements are comprised of a bleach-accelerating agent and a dye-stabilizing agent. Formaldehyde precursors function as particularly effective dye-stabilizing agents in such compositions. The bleach-accelerating composition is utilized subsequent to the color developing step and prior to the bleaching step and serves to enhance the effectiveness of the bleaching step and to provide improved dye stability.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: May 1, 1990
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Paul A. Schwartz