Patents by Inventor Christian Proudhon

Christian Proudhon 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).

  • Austenitic stainless steel strip having a bright surface finish and excellent mechanical properties
    Patent number: 8268101
    Abstract: The invention relates to an austenitic stainless steel strip having an elastic limit Rp0.2 which is greater than or equal to 600 MPa, a breaking load Rm which is greater than or equal to 800 MPa, an elongation A80 which is greater than or equal to 40% and a bright surface finish of the bright annealed type. The invention also relates to a method for the continuous production of said austenitic stainless steel strip.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: September 18, 2012
    Assignee: Aperam Stainless France
    Inventors: Francois Conrad, Christian Proudhon, Patrick Borgna
  • AUSTENITIC STAINLESS STEEL STRIP HAVING A BRIGHT SURFACE FINISH AND EXCELLENT MECHANICAL PROPERTIES
    Publication number: 20090202380
    Abstract: The invention relates to an austenitic stainless steel strip having an elastic limit Rp0.2 which is greater than or equal to 600 MPa, a breaking load Rm which is greater than or equal to 800 MPa, an elongation A80 which is greater than or equal to 40% and a bright surface finish of the bright annealed type. The invention also relates to a method for the continuous production of said austenitic stainless steel strip.
    Type: Application
    Filed: April 6, 2006
    Publication date: August 13, 2009
    Applicant: UGINE & ALZ FRANCE
    Inventors: Francois Conrad, Christian Proudhon, Patrick Borgna