Patents by Inventor Robert Lawrence Bittner

Robert Lawrence Bittner 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).

  • Patent number: 5672467
    Abstract: A dye image forming photographic element is disclosed containing at least one green or red sensitized silver halide emulsion layer containing a dye-forming coupler and silver halide grains. At least 50 percent of the projected area of the silver halide grains is accounted for by grains (a) containing greater than 50 mole percent chloride, based on silver, (b) having {100} major faces, (c) exhibiting a thickness of 0.2 .mu.m or less, (d) exhibiting a mean equivalent lent circular diameter in the range of from 3 to 6 .mu.m, and (e) including a core and a surrounding band containing a higher level of iodide ions than the core and up to 30 percent of the silver forming the grains. The photographic element exhibits a sensitivity of greater than 750, where sensitivity is measured as the reciprocal of the exposure in lux-seconds required to produce a density of 0.15 above fog when the photographic element is exposed to a 3000.degree. K.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: September 30, 1997
    Assignee: Eastman Kodak Company
    Inventors: Lois Ann Buitano, Robert Lawrence Bittner