Patents by Inventor Gaston Jacob Benoy

Gaston Jacob Benoy 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).

  • 2-Equivalent acylacetamide yellow forming couplers with 2,6-dioxo-7-purinyl coupling off group
    Patent number: 4032347
    Abstract: A photographic material is described comprising novel 2-equivalent yellow forming color couplers the active methylene group of which carries a 2,6-dioxo-7-purinyl group in its oxo- or enol form.
    Type: Grant
    Filed: November 25, 1975
    Date of Patent: June 28, 1977
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Raphael Karel Van Poucke, Marc Willem Ailliet, Leo August Van Wijnsberghe, Gaston Jacob Benoy