Patents by Inventor Jacques Adrien

Jacques Adrien 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).

  • Steel for shaping tools
    Patent number: 5969277
    Abstract: A steel obtained via the metallurgy of a high purity pre-alloyed, agglomerated and densified powder, the steel has the following weight composition: Manganese <1%, silicon <1%, chromium 4.50-6.45%, molybdenum 4-6%, vanadium 6.10-6.5%, tungsten 18.20-18.70%, sulfur <0.0020%, phosphorus .ltoreq.0.030%, oxygen .ltoreq.100 ppm, cobalt 5-7%, nitrogen 0.050-0.080%, .ltoreq.aluminum 0.020%, carbon 1.80-1.95%, balance iron and the impurities which are characteristic of producing steel. The steel has for the most part a dispersion of vanadium MC type carbides.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: October 19, 1999
    Assignee: Thyssen France SA
    Inventors: Jacques Adrien, Remi Bertrand