Patents by Inventor Peter-Jurgen Hofmann

Peter-Jurgen Hofmann 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).

  • Pairing of materials for highly stressed machine parts
    Patent number: 4599278
    Abstract: Material pairing for highly stresses machine parts with sliding friction between two surfaces, particularly for parallel-plate slide valves in a corrosive environment, wherein the one surface is formed by a hard cobalt alloy applied as hard-face welding, and the other surface is formed by a low-alloy, low-chromium steel which is tempered and nitrided.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: July 8, 1986
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventor: Peter-Jurgen Hofmann