Patents by Inventor Ralf Kannefass

Ralf Kannefass 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).

  • Turbine blade and method for producing a turbine blade
    Patent number: 6769866
    Abstract: A turbine blade extends along a major axis from a root region via a blade leaf region capable of being acted upon by hot gas to a head region. The turbine blade is formed essentially from carbon-fiber-reinforced carbon, at least the blade leaf region having a blade outer wall with carbon-fiber-reinforced carbon, the blade outer wall being surrounded by a protective layer.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: August 3, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ralf Kannefass, Markus Tacke