Patents by Inventor Gerhard Kosfeld

Gerhard Kosfeld 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).

  • Filler containing easily oxidizable elements
    Patent number: 4663244
    Abstract: A filler containing easily oxidizable elements such as aluminum, titanium, zirconium, rare earth metals as well as a powder combination containing fluorides and carbonates is used for fusion welding steel, nickel and cobalt alloys and corresponding castings containing easily oxidizable elements. The ratio of the dry weight of all fluorides to the dry weight of the alkaline earth carbonates in the powder combination is at least 2.2:1.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: May 5, 1987
    Assignee: Messer Griesheim GmbH
    Inventors: Wolfgang Herrnkind, Reinhard Itzenhauser, Gerhard Kosfeld