Patents by Inventor Jan kerman

Jan kerman 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 making cemented carbide articles and the resulting articles
    Patent number: 5619000
    Abstract: The present invention relates to a method of producing a sintered body comprising one or more hard constituents and a binder phase based on cobalt, nickel and/or iron by powder metallurgical methods milling, pressing and sintering of powders. At least part of the binderphase powder consists of non-agglomerated particles of spheroidal morphology having dimensions of 0.1 to 20 .mu.m.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: April 8, 1997
    Assignees: Sandvik AB, Eurotungstene Poudres S.A.
    Inventors: Stefan Ederyd, Jan kerman, Robert Beaufoy, Michael Carpenter, Maxime Bonneau, Jacques Pillot