Patents by Inventor Jon T. Staples

Jon T. Staples 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).

  • Hybrid color photographic elements and processes for developing same
    Patent number: 4153459
    Abstract: Color photographic elements containing silver halide and incorporated colored and color-forming materials are described. These elements have (a) a layer containing a yellow dye or yellow dye precursor that is bleachable by a mild silver-dye-bleach procedure and (b) at least one other layer, spectrally sensitized to green light, which contains a color-forming coupler which forms magenta dye upon reaction with oxidized color developer. Such elements, when they are processed by a process have improved graininess and yield sharper images. The novel process comprises the steps:A. develop in black and white developer,B. apply non-fixing silver-dye-bleach solution,C. rinse,D. fog and color developE. washF. bleach and fix.A "positive" colored image results.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: May 8, 1979
    Assignee: Eastman Kodak Company
    Inventors: Dan Neuberger, Jon T. Staples
  • Photographic sulfonamido compounds and elements and processes using them
    Patent number: 4135929
    Abstract: A novel class of redox releasing compounds contains an N,N-disubstituted carbamoyl ballast group. These compounds can be used in photographic elements and processes to release a dye or other photographically useful group as a function of silver halide development.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: January 23, 1979
    Assignee: Eastman Kodak Company
    Inventors: Jose M. Fernandez, Michael D. McCreary, Robert E. Ross, Jon T. Staples