Patents by Inventor Adrian J. Codling

Adrian J. Codling 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 recording materials and their use in redox amplification
    Patent number: 6127107
    Abstract: A photographic recording material for use in redox amplification comprises a support having thereon a plurality of emulsion layers, each emulsion layer containing a color-forming coupler, and wherein the activity of the couplers is from 45 to 70% as measured by the citrazinic acid method. These materials may be developed by a redox development step which may be followed by a bleach-fix step without any intervening step. Staining is eliminated with the use of these photographic materials.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: October 3, 2000
    Assignee: Eastman Kodak Company
    Inventors: Adrian J. Codling, John R. Fyson
  • Photographic recording materials and their use in redox amplification
    Patent number: 6063553
    Abstract: A photographic recording material for use in redox amplification comprises a support having thereon a plurality of emulsion layers, each emulsion layer containing a color-forming coupler, and wherein the activity of the couplers is from 45 to 70% as measured by the citrazinic acid method. These materials may be developed by a redox development step which may be followed by a bleach-fix step without any intervening step. Staining is eliminated with the use of these photographic materials.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: May 16, 2000
    Assignee: Eastman Kodak Company
    Inventors: Adrian J. Codling, John R. Fyson