Patents by Inventor Carsten Plug

Carsten Plug 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).

  • Hybrid pigments
    Patent number: 6482817
    Abstract: The invention provides hybrid pigments containing: (a) at least one benzimidazolone triphenodioxazine compound of the formula (I)  and (b) at least one pyrrolo-[3,4-c]-pyrrole compound, or (c) at least one thiazine-indigo compound, or (d) at least one quinacridone compound or (e) at least one copper phthalocyanine compound and a process for the preparation of such hybrid pigments and their use for the mass pigmentation of substrates, as colorants in electrophotographic toners and developers, in powders and powder coating materials, in ink-jet inks and in cosmetic compositions.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: November 19, 2002
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bansi Lal Kaul, Bruno Piastra, Carsten Plug, Pascal Steffanut, Roland Born