Patents by Inventor Pierre Leproust

Pierre Leproust 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 the preparation of and crystalline forms of optical enantiomers of modafinil
    Patent number: 8975442
    Abstract: The invention relates to a polymorphic form of (?)-modafinil that produces a powder X-ray diffraction spectrum comprising intensity peaks corresponding to interplanar spacings of about 14.14, 10.66, 7.80 and 4.02 ?, and a process for the preparation thereof.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: March 10, 2015
    Assignee: Teva Sante
    Inventors: Pierre Leproust, Olivier Neckebrock
  • Process for the preparation of and crystalline forms of optical enantiomers of modafinil
    Patent number: 8729305
    Abstract: The invention relates to a polymorphic form of (?)-modafinil that produces a powder X-ray diffraction spectrum comprising intensity peaks corresponding to interplanar spacings of about 14.14, 10.66, 7.80 and 4.02 ?, and a process for the preparation thereof.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: May 20, 2014
    Assignee: Teva Sante
    Inventors: Pierre Leproust, Olivier Neckebrock
  • PROCESS FOR THE PREPARATION OF AND CRYSTALLINE FORMS OF OPTICAL ENANTIOMERS OF MODAFINIL
    Publication number: 20140031589
    Abstract: The invention relates to a polymorphic form of (?)-modafinil that produces a powder X-ray diffraction spectrum comprising intensity peaks corresponding to interplanar spacings of about 14.14, 10.66, 7.80 and 4.02 ?, and a process for the preparation thereof.
    Type: Application
    Filed: August 28, 2013
    Publication date: January 30, 2014
    Applicant: Teva Sante
    Inventors: Pierre Leproust, Olivier Neckebrock
  • PROCESS FOR THE PREPARATION OF AND CRYSTALLINE FORMS OF OPTICAL ENANTIOMERS OF MODAFINIL
    Publication number: 20130274521
    Abstract: The invention relates to a polymorphic form of (?)-modafinil that produces a powder X-ray diffraction spectrum comprising intensity peaks corresponding to interplanar spacings of about 14.14, 10.66, 7.80 and 4.02 ?, and a process for the preparation thereof.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 17, 2013
    Inventors: Pierre Leproust, Olivier Neckebrock
  • Method for the production of crystalline forms and crystalline forms of optical enantiomers of modafinil
    Patent number: 7132570
    Abstract: The invention relates to a process for the preparation of crystalline forms of the optical enantiomers of modafinil, comprising stages comprising: i) dissolving one of the optical enantiomers of modafinil in a solvent other than ethanol, ii) crystallising the modafinil enantiomer, iii) recovering the crystalline form of the modafinil enantiomer so obtained. The invention also relates to a process for the preparation of the optical enantiomers of modafinil.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: November 7, 2006
    Assignee: Cephalon France
    Inventors: Olivier Neckebrock, Pierre Leproust