Patents by Inventor David Guieysse

David Guieysse 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 PREPARING ALKYL POLYGLUCOSIDES, AND ALKYL POLYGLUCOSIDES OBTAINED ACCORDING TO THE PROCESS
    Publication number: 20230295679
    Abstract: The present invention relates to a process for preparing an alkyl polyglucoside by enzymatic catalysis, using sucrose or an analogue thereof as substrate and making it possible to obtain a large diversity of alkyl polyglucosides in terms of size and structure of the glucoside part thereof, making possible the obtaining of an alkyl polyglucoside with a number of glucosyl units that can be adjusted from 2 to 200 glucosyl units. The process also makes it possible to adjust the linear or branched structure of the carbohydrate part of the alkyl polyglucoside obtained, and also the nature of the glycosidic bonds linking the glucose residues within the carbohydrate part.
    Type: Application
    Filed: July 2, 2021
    Publication date: September 21, 2023
    Applicants: INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE TOULOUSE, Institut National de Recherche Pour l'Agriculture, l'Alimentation et l'Environnement, Centre National de la Recherche Scientifique (CNRS)
    Inventors: Etienne SEVERAC, Claire MOULIS, David GUIEYSSE, Sandrine MOREL, Magali REMAUD-SIMEON
  • Enzymatic production of glycosylated synthons
    Patent number: 10696995
    Abstract: The present invention relates to a method for producing a glycosylated synthon or a monomer. Said method includes at least one step of placing at least one glycan-saccharase in the presence of at least one hydroxylated synthon and at least one saccharose. The invention also relates to a method for producing a glyco(co)polymer, including polymerizing at least two monomers separately obtained from the enzymatic glycosylation method according to the invention, and to a method for producing a glyco(co)polymer, preferably a block glyco(co)polymer, including coupling at least two monomers separately obtained from the enzymatic glycosylation method according to the invention.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: June 30, 2020
    Assignees: INSTITUT NATIONAL DE RECHERCHE POUR L'AGRICULTURE, L'ALIMENTATION ET L'ENVIRONNEMENT, INSTITUT NATIONAL DES SCIENCES APPIQUEES DE TOULOUSE (INSAT), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX
    Inventors: Isabelle Andre, Stephane Grelier, David Guieysse, Alvaro Lafraya, Pierre Monsan, Claire Moulis, Frederic Peruch, Magali Remaud-Simeon, Marlene Vuillemin
  • Enzymatic Production of Glycosylated Synthons
    Publication number: 20180258456
    Abstract: The present invention relates to a method for producing a glycosylated synthon or a monomer. Said method includes at least one step of placing at least one glycan-saccharase in the presence of at least one hydroxylated synthon and at least one saccharose. The invention also relates to a method for producing a glyco(co)polymer, including polymerizing at least two monomers separately obtained from the enzymatic glycosylation method according to the invention, and to a method for producing a glyco(co)polymer, preferably a block glyco(co)polymer, including coupling at least two monomers separately obtained from the enzymatic glycosylation method according to the invention.
    Type: Application
    Filed: March 17, 2016
    Publication date: September 13, 2018
    Inventors: Isabelle Andre, Stephane Grelier, David Guieysse, Alvaro Lafraya, Pierre Monsan, Claire Moulis, Frederic Peruch, Magali Remaud-Simeon, Marlene Vuillemin