Patents by Inventor Rainer Bühler

Rainer Bühler 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).

  • Forging of workpieces
    Patent number: 6735994
    Abstract: The invention relates to apparatus for enlarging part of a metal workpiece by cold forging, characterised by an enlarging die (5, 6) and by the die having means (8, 8′) to alleviate stress to the workpiece during forging.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: May 18, 2004
    Inventors: Rainer Bühler, Noppadol Amorntatkul