Patents by Inventor Roland Francois Beels

Roland Francois Beels 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).

  • Processing of photographic silver halide material
    Patent number: 4059446
    Abstract: Sludge formation is reduced in the fixing and washing station of an automatic processing apparatus for rapid processing exposed photographic elements, by addition to the fixing and/or washing medium of a compound of the formula:R(OCH.sub.2 CH.sub.2).sub.n OHwherein n is at least 12 and R is an aliphatic group of 6 to 24 carbon atoms or an alkylaryl group.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: November 22, 1977
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Edwin Hendrik Hazenbosch, Antoine Roberta Van Rossen, Roland Francois Beels, Marcel Frans Aelterman