Patents by Inventor Guillaume Tauvel

Guillaume Tauvel 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).

  • Precursor phase and use thereof for preparing the magnesium tetrahydrate salt of an omeprazole enantiomer
    Patent number: 8592601
    Abstract: A precursor phase of the magnesium tetrahydrate salt of an omeprazole enantiomer, and also processes for preparing it and its use for the preparation of the magnesium tetrahydrate salt are described. Crystals of the magnesium tetrahydrate salt thus obtained, and their uses, especially in the synthesis of the dihydrate form A of the magnesium salt of the enantiomer or as medicament are also disclosed.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: November 26, 2013
    Assignees: Produits Chimiques Auxiliaires et de Synthese, Universite de Rouen
    Inventors: Snella Chouippe, Jean-Marie Schneider, Guillaume Tauvel, Gerard Coquerel
  • Conglomerates of tenatoprazole potassium salts
    Patent number: 8546574
    Abstract: The invention relates to conglomerates of tenatoprazole potassium salts of the following general formula (I), that consist of an equimolar mixture of enantiomers having R and S configurations and capable of crystallization in the form of a conglomerate, wherein said salts are selected from tenatoprazole dehydrated potassium salt, tenatoprazole potassium dimethanolate, tenatoprazole potassium diethanolate and tenatoprazole potassium ethylene-glycolate. The invention also relates to a pharmaceutical composition containing such salt, and to the use of said salt.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: October 1, 2013
    Assignee: Sidem Pharma SA
    Inventors: Avraham Cohen, François Schutze, Suzy Charbit, Stéphane Bernad, Guillaume Tauvel, Marie-Noëlle Petit, Gérard Coquerel
  • PRECURSOR PHASE AND USE THEREOF FOR PREPARING THE MAGNESIUM TETRAHYDRATE SALT OF AN OMEPRAZOLE ENANTIOMER
    Publication number: 20110269798
    Abstract: A precursor phase of the magnesium tetrahydrate salt of an omeprazole enantiomer, and also processes for preparing it and its use for the preparation of the magnesium tetrahydrate salt are described. Crystals of the magnesium tetrahydrate salt thus obtained, and their uses, especially in the synthesis of the dihydrate form A of the magnesium salt of the enantiomer or as medicament are also disclosed.
    Type: Application
    Filed: March 31, 2011
    Publication date: November 3, 2011
    Applicants: UNIVERSITE DE ROUEN, PRODUITS CHIMIQUES AUXILIAIRES ET DE SYNTHESE
    Inventors: Snella CHOUIPPE, Jean-Marie SCHNEIDER, Guillaume TAUVEL, Gerard COQUEREL
  • Method for resolving omeprazole salts
    Patent number: 8034948
    Abstract: The present invention relates to the resolution by preferential crystallization of potassium salts of racemic omeprazole which is a solvate of ethanol and/or of ethylene glycol, which consists in converting the omeprazole to the potassium salt in the form of a solvate or of a mixture of these solvates in the presence of an excess of inorganic base which is a source of potassium, the said potassium salts existing in the form of conglomerates, and in then resolving the said conglomerates, independently or simultaneously, by preferential crystallization in order to separate the two (S) and (R) enantiomers of these potassium salts of omeprazole.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: October 11, 2011
    Assignee: Universite de Rouen
    Inventors: Gérard Coquerel, Guillaume Tauvel, Marie-Noelle Petit
  • Method for resolving omeprazole salts
    Publication number: 20090124811
    Abstract: The present invention relates to the resolution by preferential crystallization of potassium salts of racemic omeprazole which is a solvate of ethanol and/or of ethylene glycol, which consists in converting the omeprazole to the potassium salt in the form of a solvate or of a mixture of these solvates in the presence of an excess of inorganic base which is a source of potassium, the said potassium salts existing in the form of conglomerates, and in then resolving the said conglomerates, independently or simultaneously, by preferential crystallization in order to separate the two (S) and (R) enantiomers of these potassium salts of omeprazole.
    Type: Application
    Filed: August 29, 2008
    Publication date: May 14, 2009
    Applicant: UNIVERSITE DE ROUEN
    Inventors: Gerard COQUEREL, Guillaume TAUVEL, Marie-Noelle PETIT