Patents by Inventor Winfried Weber

Winfried Weber 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).

  • Nanoscale zinc oxide, process for its production and use
    Patent number: 7718261
    Abstract: Nanoscale, pyrogenically produced zinc oxide having a BET surface area of 10 to 200 m2/g, which is in the form of aggregates of anisotropic primary particles and whereby the aggregates display an average diameter of 50 to 300 nm. It is obtained from zinc powder, which is converted to zinc oxide powder in the four successive reaction zones, evaporation zone, nucleation zone, oxidation zone and quench zone. It can be used in sunscreen formulations.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: May 18, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Stipan Katusic, Günther Michael, Peter Kress, Geoffrey J. Varga, Edwin Staab, Winfried Weber
  • Nanoscale zinc oxide, process for its production and use
    Publication number: 20050069506
    Abstract: Nanoscale, pyrogenically produced zinc oxide having a BET surface area of 10 to 200 m2/g, which is in the form of aggregates of anisotropic primary particles and whereby the aggregates display an average diameter of 50 to 300 nm. It is obtained from zinc powder, which is converted to zinc oxide powder in the four successive reaction zones, evaporation zone, nucleation zone, oxidation zone and quench zone. It can be used in sunscreen formulations.
    Type: Application
    Filed: March 10, 2003
    Publication date: March 31, 2005
    Applicant: DEGUSSA AG
    Inventors: Stipan Katusic, Guenther Michael, Peter Kress, Geoffrey Varga, Edwin Staab, Winfried Weber
  • Process for applying ceramic coatings using a plasma jet carrying a free form non-metallic element
    Patent number: 5356674
    Abstract: Process for applying a coating of ceramic material on a substrate by plasma spraying. The material to be sprayed, which is incorporated in the plasma jet, includes a chemical compound one constituent of which is a non-metallic element from the group N, C, B or from main groups VI or VII of the periodic classification, which decomposes, at least partially, in an inert environment before reaching the melting point and which is present in the solid phase in the applied state. To improve the process so that the chemical compound contained in the material can be applied to the substrate stoichiometrically, i.e., undecomposed, and form an impermeable, adherent, stable coating, the non-metallic element is incorporated in the plasma jet, in addition to the material to be sprayed, in a free form, not bound to a foreign element.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: October 18, 1994
    Assignees: Deutsche Forschungsanstalt fuer Luft-Raumfahrt e.V., W. C. Heraeus GmbH
    Inventors: Rudolf Henne, Winfried Weber, Guenter Schiller, Werner Schnurnberger, Michael Kabs