Patents by Inventor Pascal Laheurte

Pascal Laheurte 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).

  • Metastable ß titanium alloy, timepiece spring made from such an alloy and method for production thereof
    Patent number: 11913106
    Abstract: A metastable ? titanium alloy is provided, which includes, by weight percent, between 24 and 45% niobium, between 0 and 20% zirconium, between 0 and 10% tantalum and/or between 0 and 1.5% silicon and/or less than 2% oxygen, said alloy having a crystallographic structure containing: a mix of austenitic phase and alpha phase; and a presence of omega phase precipitates the volume fraction of which is less than 10%. Also provided is a timepiece spring made from such an alloy and a method for producing such a spring.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: February 27, 2024
    Assignee: SAS INNO TECH CONSEILS
    Inventors: Pascal Laheurte, Pierre Charbonnier, Laurent Peltier
  • Method for the thermomechanical treatment of a titanium alloy, and resulting alloy and prosthesis
    Patent number: 9464344
    Abstract: According to a thermomechanical treatment process for a titanium alloy including between 23 and 27% niobium in atomic proportion, between 0 and 10% zirconium, and between 0 and 1% oxygen, nitrogen and/or silicon, the following steps are performed: a) an increase of a sample of the alloy to a temperature higher than 900° C., b) a fast quench, c) a severe cold strain, d) an ageing treatment at a temperature included between 200 and 600° C., the time of the ageing treatment being included between 10 seconds and 10 minutes. Alloy obtained by this process and prostheses made from such an alloy.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: October 11, 2016
    Assignees: UNIVERSITE DE LORRAINE, ECOLE NATIONALE D INGENIEURS DE METZ (ENIM), ARTS, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES (INSA DE RENNES), NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CRNS)
    Inventors: Pascal Laheurte, Frédéric Prima, Thierry Gloriant, Wafa Elmay, André Eberhardt, Etienne Patoor
  • METHOD FOR THE THERMOMECHANICAL TREATMENT OF A TITANIUM ALLOY, AND RESULTING ALLOY AND PROSTHESIS
    Publication number: 20140290811
    Abstract: According to a thermomechanical treatment process for a titanium alloy including between 23 and 27% niobium in atomic proportion, between 0 and 10% zirconium, and between 0 and 1% oxygen, nitrogen and/or silicon, the following steps are performed: a) an increase of a sample of the alloy to a temperature higher than 900° C., b) a fast quench, c) a severe cold strain, d) an ageing treatment at a temperature included between 200 and 600° C., the time of the ageing treatment being included between 10 seconds and 10 minutes. Alloy obtained by this process and prostheses made from such an alloy.
    Type: Application
    Filed: November 7, 2012
    Publication date: October 2, 2014
    Inventors: Pascal Laheurte, Frédéric Prima, Thierry Gloriant, Wafa Elmay, André Eberhardt, Etienne Patoor