Patents by Inventor Elke Steudel

Elke Steudel 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).

  • Multilayer pigments based on coated metal platelets
    Publication number: 20040180010
    Abstract: The present invention relates to multilayer pigments based on platelet-shaped metal substrates coated with two or more metal oxide layers by a one-pot process in an exclusively aqueous medium. The invention further relates to the use of the multilayer pigments in paints, varnishes, printing inks, including security printing inks, plastics, ceramic materials and cosmetic and for the laser formulations marking of plastics.
    Type: Application
    Filed: March 30, 2004
    Publication date: September 16, 2004
    Inventors: Stephanie Andes, Sabine George, Margarete Herbski, Peter Reynders, Reiner Vogt, Johann Dietz, Helge Kniess, Elke Steudel
  • Multilayer pigments based on coated metal platelets
    Patent number: 6776835
    Abstract: The present invention relates to multilayer pigments based on platelet-shaped metal substrates coated with two or more metal oxide layers by a one-pot process in an exclusively aqueous medium. The invention further relates to the use of the multilayer pigments in paints, varnishes, printing inks, including security printing inks, plastics, ceramic materials and cosmetic and for the laser formulations marking of plastics.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: August 17, 2004
    Assignee: Merck Patent Gesellschaft MIT Beschrankter Haftung
    Inventors: Stephanie Andes, Sabine George, Margarete Herbski, Peter Reynders, Reiner Vogt, Johann Dietz, Helge Kniess, Elke Steudel
  • Transparent medium having angle-selective transmission or reflection properties and/or absorption properties
    Patent number: 6767633
    Abstract: The invention relates to a transparent medium comprising multilayer pigments having angle-selective reflection or transmission properties and/or absorption properties, and to their use, in particular in transparent thermal insulation systems (TTIs).
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: July 27, 2004
    Assignee: Merck Patent GmbH
    Inventors: Elke Steudel, Hans-Dieter Brückner, Gerhard Pfaff, Peter Reynders, Christoph Schmidt, Carsten Brabänder, Wolfgang Hechler
  • Multilayer pigments based on coated metal platelets
    Publication number: 20030209169
    Abstract: The present invention relates to multilayer pigments based on platelet-shaped metal substrates coated with two or more metal oxide layers by a one-pot process in an exclusively aqueous medium. The invention further relates to the use of the multilayer pigments in paints, varnishes, printing inks, including security printing inks, plastics, ceramic materials and cosmetic and for the laser formulations marking of plastics.
    Type: Application
    Filed: June 4, 2003
    Publication date: November 13, 2003
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Stephanie Andes, Sabine George, Margarete Herbski, Peter Reynders, Reiner Vogt, Johann Dietz, Helge Kniess, Elke Steudel
  • Transparent medium having angle-selective transmission or reflection properties and/or absorption properties
    Publication number: 20030092815
    Abstract: The invention relates to a transparent medium comprising multilayer pigments having angle-selective reflection or transmission properties and/or absorption properties, and to their use, in particular in transparent thermal insulation systems (TTIs).
    Type: Application
    Filed: October 10, 2002
    Publication date: May 15, 2003
    Inventors: Elke Steudel, Hans-Dieter Brckner, Gerhard Pfaff, Peter Reynders, Christoph Schmidt, Carsten Brabnder, Wolfgang Hechler