Patents by Inventor Eric Richard Brown

Eric Richard Brown 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 processing solution containing ternary ferric-complex salts
    Patent number: 5670305
    Abstract: A composition for bleach-fixing a silver halide photographic element comprising a fixing agent and a ternary ferric-complex salt formed by a tetradentate ligand and a tridentate ligand and a method of bleach-fixing using said composition.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: September 23, 1997
    Assignee: Eastman Kodak Company
    Inventors: Stuart Terrance Gordon, Keith Henry Stephen, Eric Richard Brown, Celia Ann DeAndrea, Mary Morris Podhorecki, William George Henry