Patents by Inventor Frederick William Millard

Frederick William Millard 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-positive silver halide emulsion fogged with a cyanoborohydride anion
    Patent number: 3951656
    Abstract: A method for chemically fogging a silver halide photographic emulsion comprising reacting cyanoborohydride anion with the silver halide thereby forming metallic silver. The cyanoborohydride is preferably in the form of an alkali metal salt. Additionally, the emulsion may optionally include a gold salt.
    Type: Grant
    Filed: July 5, 1974
    Date of Patent: April 20, 1976
    Assignee: GAF Corporation
    Inventor: Frederick William Millard