Patents by Inventor Thomas I. Abbott

Thomas I. Abbott 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 material comprising leuco dye for cold silver image tone
    Patent number: 4865958
    Abstract: A photographic recording material is described which comprises a leuco dye which is capable of generating a blue tone in a developed silver image.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: September 12, 1989
    Assignee: Eastman Kodak Company
    Inventors: Thomas I. Abbott, Robert E. Dickerson, Michael P. Youngblood
  • Radiographic elements exhibiting reduced crossover
    Patent number: 4425425
    Abstract: Radiographic elements are disclosed comprised of first and second imaging portions separated by an interposed support capable of transmitting radiation to which the second imaging portion is responsive. At least the first imaging portion includes a silver halide emulsion in which high aspect ratio tabular silver halide grains are present. Spectral sensitizing dye is adsorbed to the surface of the tabular grains. Crossover can be improved in relation to the imaging characteristics.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 10, 1984
    Assignee: Eastman Kodak Company
    Inventors: Thomas I. Abbott, Cynthia Jones
  • Radiographic elements exhibiting reduced crossover
    Patent number: 4425426
    Abstract: Radiographic elements are disclosed comprised of first and second imaging portions separated by an interposed support capable of transmitting radiation to which the second imaging portion is responsive. At least the first imaging portion includes a silver halide emulsion in which thin tabular silver halide grains of intermediate aspect ratios are present. Spectral sensitizing dye is adsorbed to the surface of the tabular grains. Crossover can be improved in relation to the imaging characteristics.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 10, 1984
    Assignee: Eastman Kodak Company
    Inventors: Thomas I. Abbott, Cynthia G. Jones
  • Blocked competing developers for color transfer
    Patent number: 4201578
    Abstract: Hydroquinone esters are incorporated in or behind a timing layer with a high activation energy to release a competing developer upon contact with a processing composition.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: May 6, 1980
    Assignee: Eastman Kodak Company
    Inventor: Thomas I. Abbott