Patents Assigned to Proteus
  • Patent number: 11286472
    Abstract: The present invention relates to the expression and optimization of enzymes involved in the breakdown of lignocellulosic biomass. Disclosed are variants of the exoglucanase 1 of Trichoderma reesei, as well as the use of said variants with improved efficiency in methods for breaking down cellulose and for producing biofuel.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 29, 2022
    Assignees: IFP Energies nouvelles, Proteus
    Inventors: Cecile Persillon, Christophe Ullmann, Celine Ayrinhac, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Stephanie Pradeau, Antoine Margeot, Lionel Rousseau, Françoise Le Roux
  • Patent number: 10745679
    Abstract: The present invention relates to the expression and optimization of enzymes involved in the breakdown of lignocellulosic biomass. Disclosed are variants of the exoglucanase 1 of Trichoderma reesei, as well as the use of said variants with improved efficiency in methods for breaking down cellulose and for producing biofuel.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 18, 2020
    Assignees: IFP Energies Nouvelles, Centre National De La Recherche Scientifique—CNRS, Proteus
    Inventors: Cecile Persillon, Christophe Ullmann, Celine Ayrinhac, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Stephanie Pradeau, Antoine Margeot, Lionel Rousseau, Françoise Le Roux
  • Patent number: 10738291
    Abstract: The present invention relates to the expression and optimisation of enzymes involved in the breakdown of lignocellulosic biomass. The present invention relates to variants of the exoglucanase 2 of Trichoderma reesei, as well as to the use of said variants with improved efficiency in methods for breaking down cellulose and for producing biofuel.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 11, 2020
    Assignees: IFP Energies nouvelles, Proteus, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS
    Inventors: Cecile Persillon, Christophe Ullmann, Celine Ayrinhac, Olivier Bonzom, Antoine Margeot, Hugues Mathis, Sebastien Fort, Sylvie Armand, Stephanie Pradeau
  • Patent number: 10000780
    Abstract: Disclosed are variants of Trichoderma reesei endoglucanase I, and methods for using such variants to break down cellulose and produce biofuel.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 19, 2018
    Assignees: IFP ENERGIES NOUVELLES, PROTEUS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS
    Inventors: Antoine Margeot, Yves Benoit, Cecile Persillon, Celine Ayrinhac, Christophe Ullmann, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Maud Petit, Marine Lenon
  • Patent number: 9920308
    Abstract: The present invention relates to the expression and optimization of enzymes involved in the breakdown of lignocellulosic biomass. The present invention relates more specifically to variants of Trichoderma reesei endoglucanase II, and the use of said variants having an improved performance in methods of breaking down cellulose and producing biofuel.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: March 20, 2018
    Assignees: IFP ENERGIES NOUVELLES, PROTEUS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS
    Inventors: Antoine Margeot, Senta Blanquet, Cecile Persillon, Celine Ayrinhac, Christophe Ullmann, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Marine Lenon, Maud Petit
  • Patent number: 9309538
    Abstract: The present invention relates to the expression and optimization of enzymes involved in lignocellulosic biomass decomposition. The present invention relates more particularly to beta-glucosidase variants comprising at least one modification among the amino acids located at positions 225, 238, 240 and 241, according to the numbering in SEQ ID No. 2 of Trichoderma reesei beta-glucosidase, and also relates to the use of said variants having improved effectiveness in methods for cellulose decomposition and biofuel production.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: April 12, 2016
    Assignees: IFP Energies Nouvelles, PROTEUS
    Inventors: Nicolas Lopes-Ferreira, Antoine Margeot, Hugues Mathis, Laurent Fourage
  • Patent number: 8741593
    Abstract: This invention has as its object a method for releasing a product by subjecting a compound of Formula (II?): R?7R?8(HX)C1-C2(YH)R?9R?10 to a chemical oxidation that cleaves the bond C1-C2 to obtain the product. In the compound of Formula (II?): R?7 to R?10, which are identical or different, correspond to a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted functional group; X and Y, which are identical or different, are an oxygen atom, a sulfur atom, or an amine of Formula —NR11R12, wherein R11 is a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, and R12 is not a hydrogen atom. The invention also has as its object a method for releasing a product that comprises, before the chemical oxidation stage, a first step for preparing the compound of Formula (II?). The released product can be a volatile molecule or an active substance or else a specific product.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: June 3, 2014
    Assignee: Proteus
    Inventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen
  • Publication number: 20120295793
    Abstract: The invention provides for methods of generating modified polynucleotide libraries by inserting and/or deleting at least three nucleotide residues in polynucleotide sequences. Theses methods may be used with other methods of gene modification such as gene shuffling. The invention further provides methods of directed molecular evolution using the modified polynucleotide libraries produced by these methods.
    Type: Application
    Filed: January 21, 2011
    Publication date: November 22, 2012
    Applicant: Proteus
    Inventors: Christophe Ullman, Laurent Fourage
  • Patent number: 7258972
    Abstract: This invention has as its object a process for generating the idiosyncratic catalytic imprint of a sample, characterized in that it comprises the following stages: the sample that is likely to have the catalytic activity is brought into contact with a group of substrates; the signals that are generated after said contact are captured in some way. Advantageously, after the signals are captured, a processing of the latter that consists of assigning to each signal a digital value constituting a component of a graphic display, for example a color display, of the idiosyncratic imprint is carried out.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: August 21, 2007
    Assignees: Proteus, Universite de Berne
    Inventors: Jean-Louis Reymond, Denis Wahler
  • Publication number: 20070099257
    Abstract: This invention has as its object a method for releasing a product by subjecting a compound of Formula (II?): R?7R?8(HX)C1-C2(YH)R?9R?10 to a chemical oxidation that cleaves the bond C1-C2 to obtain the product. In the compound of Formula (II?): R?7 to R?10, which are identical or different, correspond to a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted functional group; X and Y, which are identical or different, are an oxygen atom, a sulfur atom, or an amine of Formula —NR11R12, wherein R11 is a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, and R12 is not a hydrogen atom. The invention also has as its object a method for releasing a product that comprises, before the chemical oxidation stage, a first step for preparing the compound of Formula (II?). The released product can be a volatile molecule or an active substance or else a specific product.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 3, 2007
    Applicants: Proteus, Universite de Berne
    Inventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen
  • Publication number: 20050014212
    Abstract: This invention has as its object a method for detecting catalytic activity of a sample, characterized in that it comprises: the incubation of a substrate (S) with the sample that may have the catalytic activity that it is desired to detect, the addition of a reagent (X) that can react either with a chemical group of unconsumed substrate (S) or with a chemical group of product (P) that is formed after an incubation period with the sample, the addition of a developer (R) that can react with reagent (X), and the detection of the transformation of developer (R).
    Type: Application
    Filed: May 28, 2004
    Publication date: January 20, 2005
    Applicants: PROTEUS, UNIVERSITY OF BERNE
    Inventors: Jean-Louis Reymond, Denis Wahler
  • Publication number: 20050009098
    Abstract: This invention has as its object a process for generating the idiosyncratic catalytic imprint of a sample, characterized in that it comprises the following stages: the sample that is likely to have the catalytic activity is brought into contact with a group of substrates; the signals that are generated after said contact are captured in some way. Advantageously, after the signals are captured, a processing of the latter that consists of assigning to each signal a digital value constituting a component of a graphic display, for example a color display, of the idiosyncratic imprint is carried out.
    Type: Application
    Filed: May 10, 2004
    Publication date: January 13, 2005
    Applicant: PROTEUS
    Inventors: Jean-Louis Reymond, Denis Wahler
  • Publication number: 20030199017
    Abstract: This invention has as its object a method for releasing a product by subjecting a compound of Formula (II′): R′7R′8(HX)C1-C2(YH)R′9R′10 to a chemical oxidation that cleaves the bond C1-C2 to obtain the product. In the compound of Formula (II′): R′7 to R′10, which are identical or different, correspond to a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted functional group; X and Y, which are identical or different, are an oxygen atom, a sulfur atom, or an amine of Formula -NR11R12, wherein R11 is a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, and R12 is not a hydrogen atom. The invention also has as its object a method for releasing a product that comprises, before the chemical oxidation stage, a first step for preparing the compound of Formula (II′). The released product can be a volatile molecule or an active substance or else a specific product.
    Type: Application
    Filed: December 2, 2002
    Publication date: October 23, 2003
    Applicant: Proteus
    Inventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen