Patents by Inventor Paulette G. Ficht

Paulette G. Ficht 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).

  • 1:1 Chromiferous complex azo compounds having a bidentate chelating group and a monofunctional neutral ligand
    Patent number: 4123429
    Abstract: Chromiferous complexes of the type: ##STR1## IN WHICH (I) represents the residue of a metallizable azo or azomethine compound, (II) represents the residue of a bidentate chelating agent and Z represents a monofunctional neutral ligand: process for the preparation of such complexes which comprises reacting a bidentate chelating agent with a 1:1 cationic chromium complex of an azo or azomethine compound in the presence of ammonia or an organic base and the use of such complexes for the coloration of synthetic materials.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: October 31, 1978
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Claude M. H. E. Brouard, Paulette G. Ficht