Patents by Inventor Manfred Parusel

Manfred Parusel 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).

  • Particulate filler, preparation and use thereof
    Publication number: 20230018717
    Abstract: The present invention relates to a particulate filler which has a coating on support particles in each case surrounding the latter, which comprises a titanium dioxide doped with niobium and at least one further element, to a process for the preparation of a particulate filler of this type and to the use thereof, in particular as varistor filler having nonlinear electrical properties in coating compositions and moulding compounds.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 19, 2023
    Applicant: Merck Patent GmbH
    Inventors: Johann BAUER, Manfred PARUSEL
  • Multilayered interference pigments
    Patent number: 6132873
    Abstract: Multilayer interference pigments consisting of a transparent carrier material coated with alternating layers of metal oxides of low and high refractive index, the layers of the metal oxides of low refractive index being optically inactive.The thickness of the metal oxide layers of high refractive index is an integral multiple of the optical thickness which is necessary for the desired interference color.The layer thickness of metal oxide layers of low refractive index is from 1 to 20 nm.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: October 17, 2000
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Johann Dietz, Manfred Parusel, Matthias Schilling, Klaus Ambrosius
  • Electrochemical process for preparing low-chloride aqueous titanyl nitrate solutions
    Patent number: 5607571
    Abstract: An electrochemical process for preparing low-chloride aqueous solutions of titanyl nitrate which have a low chloride content, particularly, less than 200 ppm.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: March 4, 1997
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Klaus-Dieter Franz, Manfred Parusel, Mathias Schraml-Marth, Klaus-Michael Juttner, Sabine Schafer
  • Preparation of metal oxide sols by electrolysis
    Patent number: 5378400
    Abstract: The invention relates to the preparation of single-multi-component metal oxide sols by hydrolysis of an aqueous metal salt solution or a solution of a metal salt mixture by direct electrolysis at -20.degree. to 50.degree. C.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: January 3, 1995
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Manfred Parusel, Klaus Ambrosius, Klaus-Dieter Franz, Wolfgang Hechler, Matthias Schraml-Marth