Patents by Inventor Walter Fichtl

Walter Fichtl 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).

  • Boriding composition
    Patent number: 3936327
    Abstract: The present invention relates to powdered boriding compositions for the production of single-phase boride layers on metal articles being substantially free from cracks in the case of mechanical stress, which comprise an activator and a mixture of a boron-releasing agent and an unreactive refractory material, such as silicon carbide.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: February 3, 1976
    Assignee: Elektroschmelzwerk Kempten GmbH
    Inventors: Walter Fichtl, Gunter Wiebke, Helmut Kunst, Alfred Graf VON Matuschka, Georg Bachmann, Alfred Lipp