Patents by Inventor Vincent R. Brown

Vincent R. 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).

  • Variable contrast black and white photographic system
    Patent number: 5445929
    Abstract: There is described a photographic system comprising a variable contrast black and white photographic element and at least one filter. The element and the filter are so chosen that they cooperate to provide an extension of log exposure range of the element.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: August 29, 1995
    Assignee: Eastman Kodak Company
    Inventors: Vincent R. Brown, John R. Burdsall, II