Patents by Inventor Xavier Cholin

Xavier Cholin 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).

  • Resulfurized austenitic stainless steel with improved machinability
    Patent number: 5656237
    Abstract: The present invention relates to a resulfurized austenitic stainless steel with improved machinability, and which is especially useful in the field of machining at high cutting speed and in the field of bar turning.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: August 12, 1997
    Assignee: Ugine Savoie
    Inventors: Pascal Terrien, Xavier Cholin, Pierre Pedarre
  • Austenitic stainless steel having a high machinability and an improved cold deformation
    Patent number: 5362439
    Abstract: The weldable austenitic stainless steel having a high machinability and an improved cold deformation has the following composition by weight: C less than 0.1%; Si less than 2%; Mn less than 2%; S less than 0.03%; Ni between 8 and 10%; Cr between 15 and 25%; P less than or equal to 0.04%; Mo less than 0.5%; Cu between 1 and 5%; N between 0.02 and 0.07%; Ca more than 30.10.sup.31 4 %; 0 more than 70.10.sup.-4 %; Al less than 50.10.sup.-4 %; the ratio Ca/O being between 0.3 and 0.6.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: November 8, 1994
    Assignee: Ugine Savoie
    Inventors: Olivier Bletton, Xavier Cholin