Patents by Inventor Detleff Steinhöfer

Detleff Steinhöfer 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 fabricating pressed components
    Patent number: 7544258
    Abstract: A simpler and less expensive method of fabricating pressed components from sheet steel that can be heat treated while inside the press, whereby the material is heated to above its transformation point Ac3, pressed, and cooled, controlled, to below its crystalline-transformation point. The sheet is unwound from a coil (1), heated to above its transformation point, pressed in a press, and separated.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 9, 2009
    Assignee: ThyssenKrupp Automotive AG
    Inventors: Detleff Steinhöfer, Ralf Kolleck