Patents by Inventor Valerie Kostoj

Valerie Kostoj 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).

  • PROCESS FOR MANUFACTURING SHEET OF AUSTENITIC STAINLESS STEEL HAVING HIGH MECHANICAL PROPERTIES AND SHEET THUS OBTAINED
    Publication number: 20110061776
    Abstract: The invention relates to a hot-rolled sheet made of austenitic stainless steel, the chemical composition of which comprises, the contents being expressed by weight: 0.015%?C?0.030%, 0.5%?Mn?2%, Si?2%, 16.5%?Cr?18%, 6%?Ni?7%, S?0.015%, P?0.045%, Al?0.050%, 0.15%?Nb?0.31%, 0.12%?N?0.16%, the Nb and N contents being such that: Nb/8+0.1%?N?Nb/8+0.12%, optionally: Mo?0.6%, 0.0005%?B?0.0025%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.
    Type: Application
    Filed: March 3, 2009
    Publication date: March 17, 2011
    Applicant: ARCELORMITTAL-STAINLESS FRANCE
    Inventors: Jean-Christophe Glez, Valerie Kostoj