Patents by Inventor Denis Dubourdieu

Denis Dubourdieu 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).

  • METHOD FOR IDENTIFYING THE OAK SPECIES OF AN OAK WOOD SAMPLE
    Publication number: 20160011166
    Abstract: The invention concerns a method for identifying the oak species including the following steps of: Providing an oak wood sample; Preparing said sample; Performing at least one analysis on the wood sample so as: to identify: from one to three molecules belonging to a 1st category of molecules defined by the derivatives of oleanane-type triterpenes which derive from an aglycone of empirical formula C30H48O6, from one to three molecules belonging to a 2nd category of molecules defined by the derivatives of oleanane-type triterpenes which derive from an aglycone of empirical formula C30H46O7, as well as derivatives of oleanane-type triterpenes which derive from an aglycone of empirical formula C30H46O8, then to determine the concentration of the identified molecules; Determining a ratio R; Identifying the oak species.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 14, 2016
    Inventors: Axel MARCHAL, Denis DUBOURDIEU
  • Extracting carbonyl compounds from a drink by extraction with a functionalized inert support
    Patent number: 8313790
    Abstract: The present invention relates to a process for extracting carbonylated compounds from a drink by liquid-solid extraction with a functionalized inert support containing nitrogenous nucleophilic functional groups. Advantageously, according to the present invention, the drink is wine or fruit juice. The process according to the present invention is advantageously applied to the reduction of the sulphur dioxide combination capacity of a drink such as wine.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: November 20, 2012
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Hervé Deleuze, Mélanie Blasi, Jean-Christophe Barbe, Denis Dubourdieu, Bernard Jean Maillard
  • PROCESS FOR EXTRACTING CARBONYLATED COMPOUNDS FROM A DRINK BY LIQUID-SOLID EXTRACTION WITH A FUNCTIONALIZED INERT SUPPORT
    Publication number: 20100166930
    Abstract: The present invention relates to a process for extracting carbonylated compounds from a drink by liquid-solid extraction with a functionalized inert support containing nitrogenous nucleophilic functional groups. Advantageously, according to the present invention, the drink is wine or fruit juice. The process according to the present invention is advantageously applied to the reduction of the sulphur dioxide combination capacity of a drink such as wine.
    Type: Application
    Filed: March 22, 2007
    Publication date: July 1, 2010
    Inventors: Hervé Deleuze, Mélanie Blasi, Jean-Christophe Barbe, Denis Dubourdieu, Bernard Jean Maillard
  • Method for protein stabilization of wines
    Patent number: 6238880
    Abstract: A process for the production of a biological product having a stabilization effect on the protein precipitations of white wines, characterized in that it consists in carrying out an enzymatic digestion of invertase of Saccharomyces cerevisiae by hydrolysis to obtain the biological product of stabilization.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: May 29, 2001
    Assignee: Societe d'Applications de Recherches et de Conseils Oenologiques
    Inventors: Virginie Moine, Denis Dubourdieu
  • Biological substance for the physico-chemical stabilization of wines
    Patent number: 6139891
    Abstract: A treatment for stabilizing wine against tartaric acids and proteins by adding mannoproteins extracted from yeast walls by enzymatic digestion, is disclosed. A method for carrying out the treatment by extracting mannoproteins from yeast by enzymatic digestion, and the resulting mannoprotein, are also disclosed.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: October 31, 2000
    Assignee: Faculte d'Oenologie
    Inventors: Denis Dubourdieu, Virginie Moine