Patents Assigned to Proteus
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Patent number: 11286472Abstract: 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: GrantFiled: February 21, 2020Date of Patent: March 29, 2022Assignees: IFP Energies nouvelles, ProteusInventors: Cecile Persillon, Christophe Ullmann, Celine Ayrinhac, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Stephanie Pradeau, Antoine Margeot, Lionel Rousseau, Françoise Le Roux
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Patent number: 10745679Abstract: 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: GrantFiled: June 12, 2015Date of Patent: August 18, 2020Assignees: IFP Energies Nouvelles, Centre National De La Recherche Scientifique—CNRS, ProteusInventors: Cecile Persillon, Christophe Ullmann, Celine Ayrinhac, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Stephanie Pradeau, Antoine Margeot, Lionel Rousseau, Françoise Le Roux
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Patent number: 10738291Abstract: 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: GrantFiled: June 12, 2015Date of Patent: August 11, 2020Assignees: IFP Energies nouvelles, Proteus, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRSInventors: Cecile Persillon, Christophe Ullmann, Celine Ayrinhac, Olivier Bonzom, Antoine Margeot, Hugues Mathis, Sebastien Fort, Sylvie Armand, Stephanie Pradeau
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Patent number: 10000780Abstract: Disclosed are variants of Trichoderma reesei endoglucanase I, and methods for using such variants to break down cellulose and produce biofuel.Type: GrantFiled: November 21, 2014Date of Patent: June 19, 2018Assignees: IFP ENERGIES NOUVELLES, PROTEUS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRSInventors: Antoine Margeot, Yves Benoit, Cecile Persillon, Celine Ayrinhac, Christophe Ullmann, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Maud Petit, Marine Lenon
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Patent number: 9920308Abstract: 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: GrantFiled: November 21, 2014Date of Patent: March 20, 2018Assignees: IFP ENERGIES NOUVELLES, PROTEUS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRSInventors: Antoine Margeot, Senta Blanquet, Cecile Persillon, Celine Ayrinhac, Christophe Ullmann, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Marine Lenon, Maud Petit
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Patent number: 9309538Abstract: 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: GrantFiled: September 10, 2009Date of Patent: April 12, 2016Assignees: IFP Energies Nouvelles, PROTEUSInventors: Nicolas Lopes-Ferreira, Antoine Margeot, Hugues Mathis, Laurent Fourage
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Patent number: 8741593Abstract: 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: GrantFiled: November 20, 2006Date of Patent: June 3, 2014Assignee: ProteusInventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen
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Publication number: 20120295793Abstract: 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: ApplicationFiled: January 21, 2011Publication date: November 22, 2012Applicant: ProteusInventors: Christophe Ullman, Laurent Fourage
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Patent number: 7258972Abstract: 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: GrantFiled: May 10, 2004Date of Patent: August 21, 2007Assignees: Proteus, Universite de BerneInventors: Jean-Louis Reymond, Denis Wahler
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Publication number: 20070099257Abstract: 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: ApplicationFiled: November 20, 2006Publication date: May 3, 2007Applicants: Proteus, Universite de BerneInventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen
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Publication number: 20050014212Abstract: 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: ApplicationFiled: May 28, 2004Publication date: January 20, 2005Applicants: PROTEUS, UNIVERSITY OF BERNEInventors: Jean-Louis Reymond, Denis Wahler
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Publication number: 20050009098Abstract: 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: ApplicationFiled: May 10, 2004Publication date: January 13, 2005Applicant: PROTEUSInventors: Jean-Louis Reymond, Denis Wahler
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Publication number: 20030199017Abstract: 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: ApplicationFiled: December 2, 2002Publication date: October 23, 2003Applicant: ProteusInventors: Jean-Louis Reymond, Denis Wahler, Frabrizzio Badalassi, Hong-Khanh Nguyen