Patents by Inventor Andre K. Claes

Andre K. Claes 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).

  • Method of dispersing photographic adjuvants in hydrophilic colloid compositions
    Patent number: 4430421
    Abstract: Method of dispersing photographic adjuvants in hydrophilic colloid compositions for forming a water-permeable photosensitive or non-photosensitive colloid layer of a photographic silver halide element with the aid of at least one high-boiling substantially water-insoluble oil-former of the class of dihydroxymethyl(5,2,1,0.sup.2,6)tricyclodecane and the carboxylic, phosphoric, or phosphonic di-ester derivatives thereof.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: February 7, 1984
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Christian C. Van de Sande, Jan J. Vandewalle, Raphael K. Van Poucke, Andre K. Claes