Patents by Inventor Michael Köppel

Michael Köppel 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).

  • Self-tapping fastener
    Patent number: 6874986
    Abstract: A self-tapping screw (1) consists of two interconnected sections (7 and 8) of stainless material. The first section (7) comprising the tool access (4) and the thread (6) consists of stainless, austenitic steel and the second section (8) configured as a boring part (5) consists of martensitic steel.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: April 5, 2005
    Assignee: SFS Intec Holding AG
    Inventors: Michael Köppel, Bernhard Hinz