Patents by Inventor Alfred Knittel

Alfred Knittel 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).

  • Use of a hard metal alloy
    Publication number: 20060037431
    Abstract: The invention relates to the use of a hard metal alloy for parts, which are subject particularly to torsion in addition to wear. Said hard metal alloy substantially contains tungsten carbide having an average grain size of less than 1.2 ?m and 13 to 23 percent by weight of binder metal which comprises one or several metals that is/are selected among the group consisting of cobalt, iron, and nickel.
    Type: Application
    Filed: August 26, 2003
    Publication date: February 23, 2006
    Inventors: Alfred Bernhard, Ronald Hubert, Alfred Knittel, Michael Schretter