Patents by Inventor Wolf-Rudiger Karl

Wolf-Rudiger Karl 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).

  • Publication number: 20060202172
    Abstract: The present invention relates to a polymer-lacquer based paint, characterized in that in addition to the lacquer paint constituents are usual per se, it contains suitable conductive additives, by which the paint lacquer is provided with antistatic properties. The present invention also relates to a method for lacquering plastic surfaces comprising lacquering plastic surfaces with a lacquer paint, wherein the lacquer paint comprises a polymer-based lacquer and conductive additives, by which the lacquer paint is provided with anti-static properties, and the conductive additives are chosen from semiconductor-doped BaSO4.
    Type: Application
    Filed: May 18, 2006
    Publication date: September 14, 2006
    Inventors: Karl Herrmann, Wolf-Rudiger Karl, Klaus Pipplies, Klaus Schulte
  • Patent number: 6599351
    Abstract: Anticorrosive white pigments useful for inhibiting corrosion include surface-coated TiO2 base bodies, preferably in the rutile modification, having Mn3(PO4)2 and one or more of the substances chosen from aluminum oxides, aluminum hydroxides, aluminum phosphates, aluminum hydrogen phosphates, aluminum dihydrogen phosphates and aluminum polyphosphates are precipitated on to the TiO2 base bodies. Mn3(PO4)2 may be replaced completely or partially by Zn3(PO4)2. Phosphates and/or oxides of cerium may be additionally deposited singly, or several of them may be deposited, on to the TiO2 base bodies.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: July 29, 2003
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Thomas Rentschler, Fritz Muller, Jochen Winkler, Wolf-Rudiger Karl, Kirsten Fohr
  • Patent number: 6051155
    Abstract: Wax-containing preparation for treating wood and leather surfaces, comprising very fine transparent titanium dioxide particles with a crystallite size of between 5 and 50 nm offer long-term protection of wood and leather surfaces against the harmful effects of light at wavelengths between 280 and 800 nm.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: April 18, 2000
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Jorg Hocken, Wolf-Rudiger Karl, Klaus Schulte