Patents by Inventor Francis R. Hilton, Jr.

Francis R. Hilton, Jr. 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).

  • Direct reversal emulsions
    Patent number: 5240828
    Abstract: Room light handleable direct reversal silver bromide emulsions, with up to 70 mole percent chloride, have a broad Dmin window when from 1.times.10.sup.-6 to 1.times.10.sup.-4 mole per silver mole of a polybromo coordination complex of iridium is incorporated in the silver halide grains. The emulsions are stabilized against deterioration on keeping with mercapto compounds.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: August 31, 1993
    Assignee: Eastman Kodak Company
    Inventors: Gaile A. Janusonis, Francis R. Hilton, Jr., Richard D. Lucitte, Woodrow G. McDugle, Roger Lok, David Erdtmann