Patents by Inventor Norbert Rick

Norbert Rick 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).

  • Inorganic spherical absorption pigments
    Patent number: 6866710
    Abstract: The present invention relates to inorganic spherical absorption pigments which have a bimodal particle-size distribution, at least one color-providing layer and a final SiO2 layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, as tracers, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: March 15, 2005
    Assignee: Merck Patent GmbH
    Inventors: Lilia Heider, Martin Knapp, Gisela Lenz, Norbert Rick
  • Inorganic spherical absorption pigments
    Publication number: 20040177789
    Abstract: The present invention relates to inorganic spherical absorption pigments which have a bimodal particle-size distribution, at least one color-providing layer and a final SiO2 layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, as tracers, in cosmetic formulations and for the preparation of pigment preparations and dry preparations.
    Type: Application
    Filed: December 17, 2003
    Publication date: September 16, 2004
    Inventors: Lilia Heider, Martin Knapp, Gisela Lenz, Norbert Rick
  • Interference pigments having a mass tone
    Publication number: 20040177788
    Abstract: Interference pigments having a mass tone based on multicoated flake-form substrates, which have on the substrate:
    Type: Application
    Filed: March 10, 2004
    Publication date: September 16, 2004
    Inventors: Norbert Rick, Lilia Heider, Manuela Loch, Nicole Schupp, Ralf Anselmann