Patents by Inventor Joseph Philip Pepe

Joseph Philip Pepe 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).

  • Mixed ripeners for silver halide emulsion formation
    Patent number: 5750327
    Abstract: The invention relates to a method of forming a silver halide emulsion comprising nucleating silver bromide nuclei while reactive contact with ammonia, a digestion said nuclei, bringing a thioether into reactive contact with said nuclei, growing the nuclei by addition of silver ion, iodide and bromide, wherein during at least the first portion of growth, the pH is maintained at about 9.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: May 12, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yun Chea Chang, James Rodgers, Joseph Philip Pepe