Patents by Inventor Norbert Fenten

Norbert Fenten 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).

  • Method of reducing the dust generation of silicates
    Patent number: 6830739
    Abstract: The present invention relates to the reduction of the dust generated by silicates, according to the method of the present invention the crushed silicate is surface-coated with a polyorganociloxane also related to a silicate with reduced dust generation and the use of a reduced dust silicate as reinforcing filler in plastic materials.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 14, 2004
    Assignee: Quarzwerke GmbH
    Inventors: Norbert Fenten, Wilfried Wolf
  • Casting composition
    Patent number: 5753741
    Abstract: In a casting composition comprising a curable syrup which contains a liquid monomer and polymer components optionally dissolved therein, and an inorganic filler which includes a quartz sand product, in order to simplify the production of white molded articles, it is proposed that a product, the individual grain of which consists in the core essentially of quartz and at the surface essentially of .alpha.-cristobalite (low-temperature modification) be selected as quartz sand product.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: May 19, 1998
    Assignees: Blanco GmbH & Co. KG, Schock & Co. GmbH
    Inventors: Stefan Harke, Stephanie Grathwohl, Klaus Hock, Rudolf Paternoster, Werner Fenzl, Norbert Fenten