Patents by Inventor Heinrich Kühn

Heinrich Kühn 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).

  • Process for producing titanium diboride coated substrates
    Patent number: 6645568
    Abstract: The invention relates to a process for producing a coating having a titanium boride content of at least 80% by weight, in which a coating having a thickness of from 0.1 mm to 1 mm, a porosity of not more than 10% by volume and an oxygen content of less than 1% by weight is applied to the surface of a substrate by plasma spraying in an atmosphere which is virtually or completely free of oxygen, with no metallic powder being added to the spraying powder.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: November 11, 2003
    Assignee: Aventis Research & Technologies GmbH & Co KG
    Inventors: Katharina Seitz, Stephan Süssbrich, Michael Hornung, Heinrich Kühn, Frank Hiltmann
  • Substrate body with a protective coating
    Patent number: 6428885
    Abstract: The invention relates to a support body with a coating of at least 95% by weight titanium boride, said coating having an oxygen content of less than or equal to 1% by weight, a metallic impurities content of less than or equal to 0.5% by weight, and a specific electrical resistance of less than or equal to 10 &mgr;&OHgr;·m at room temperature.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: August 6, 2002
    Assignee: Aventis Research & Technologies GmbH & Co KG
    Inventors: Katharina Seitz, Stephan Süssbrich, Michael Hornung, Heinrich Kühn, Frank Hiltmann