Patents by Inventor Alexandre L'Heureux

Alexandre L'Heureux 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).

  • 3-Heterocyclic benzylamide derivatives as potassium channel openers
    Publication number: 20040106621
    Abstract: The present invention provides novel 3-heterocyclic benzylamides and related derivatives having the general Formula I 1
    Type: Application
    Filed: November 21, 2003
    Publication date: June 3, 2004
    Inventors: Yong-Jin Wu, Alexandre L'Heureux, Huan He
  • Azaindole kinase inhibitors
    Publication number: 20040063707
    Abstract: The present invention provides compounds of formula I, 1
    Type: Application
    Filed: July 18, 2003
    Publication date: April 1, 2004
    Inventors: Rajeev S. Bhide, Rejean Ruel, Carl Thibault, Alexandre L'Heureux
  • Cinnamide derivatives as KCNQ potassium channel modulators
    Publication number: 20030166650
    Abstract: There is provided novel cinnamide derivatives of Formula I 1
    Type: Application
    Filed: May 31, 2002
    Publication date: September 4, 2003
    Inventors: Yong-Jin Wu, Li-Quang Sun, Jie Chen, Huan He, Alexandre L'Heureux, Pierre Dextraze, Jean-Paul Daris, Gene G. Kinney, Steven I. Dworetzky, Piyasena Hewawasam
  • Preparation of chloromethylpyridine hydrochlorides
    Patent number: 5942625
    Abstract: Chloromethylpyridine hydrochlorides such as 3-chloromethylpyridine hydrochloride, an important pharmaceutical intermediate, are prepared in high yield and high purity by reacting the corresponding pyridyl carbinol with a slight excess of thionyl chloride, in solution in an inert solvent such as toluene. The pyridyl carbinol solution is added to the thionyl chloride gradually and under its surface, to prevent the formation of impurities. The product is recovered by applying vacuum or nitrogen purge to the reaction mixture to assist precipitation, followed by filtration and washing.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: August 24, 1999
    Assignee: Delmar Chemicals
    Inventors: Yuan Wang, Lu Wei Liu, Alexandre L'Heureux, Olivier Lepage, Diane Phelan