Patents Assigned to Universite de Poitiers
  • Publication number: 20240427057
    Abstract: An optical element includes a transparent substrate and an intermediate coating extending over at least one main surface of the substrate. The intermediate coating has a plurality of dense thin layers which alternate in having a first index refractive index and a second refractive index, the first refractive index being greater than the second refractive index. The optical element further includes at least one porous layer extending over the intermediate coating, opposite the substrate. The porous layer has a third refractive index that is lower than the first and second refractive indices.
    Type: Application
    Filed: October 6, 2022
    Publication date: December 26, 2024
    Applicants: SAFRAN ELECTRONICS & DEFENSE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS
    Inventors: Cyril DUPEYRAT, Fabien PAUMIER, Baptiste Simon GIROIRE
  • Patent number: 12145984
    Abstract: Inflammation is a prominent feature of ischemia-reperfusion injury (IRI) characterized by leukocyte infiltration and renal tubular injury. However, the signals that initiate these events remain poorly understood. The inventors identify the nuclear alarmin interleukin (IL)-33 as an initiation factor of tissue injury and also as a major amplification factor of the innate immune response triggered by experimental kidney ischemia-reperfusion in mice. In mice lacking IL-33, IRI is reduced, as attested by early decreased tubular cell injury, and by subsequent decreased infiltration of IFN-?/IL-17A-producing neutrophils and preservation of renal functions. These findings led the inventors to propose that endogenous IFN-33 contributes to kidney IRI by promoting iNKT cell recruitment and cytokine production, resulting in neutrophil infiltration and activation at the injury site. Accordingly, the present invention relates to antagonists of IL-33 for use in methods for preventing ischemia reperfusion injury in an organ.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 19, 2024
    Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), CENTRE HOSPITALIER UNIVERSITAIRE DE POITIERS, UNIVERSITE DE POITIERS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: André Herbelin, Jean-Marc Gombert, Maroua Ferhat, Antoine Thierry, Jean-Philippe Girard
  • Publication number: 20240287650
    Abstract: The invention relates to a nickel-based superalloy comprising in weight percentages: 5.0 to 6.0% of aluminium, 6.0 to 9.0% of tantalum, 1.0 to 5.0% of cobalt, 5.0 to 7.5% of chromium, 0 to 1.0% of molybdenum, 4.0 to 6.0% of tungsten, 0.50 to 3.5% of rhenium, 1.0 to 4.0% of platinum, 0.05 to 0.25% of hafnium, 0 to 0.15% of silicon, the remainder consisting of nickel and unavoidable impurities. The invention also relates to a single-crystal blade comprising such an alloy and to a turbomachine comprising such a blade.
    Type: Application
    Filed: June 17, 2022
    Publication date: August 29, 2024
    Applicants: SAFRAN, SAFRAN AIRCRAFT ENGINES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS, ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS
    Inventors: Jérémy RAME, Jonathan CORMIER, Lorena MATAVELI SUAVE, Edern MENOU
  • Publication number: 20240081729
    Abstract: A sleep analyzer, method and system with reduced invasiveness and limited human intervention to monitor sleep in an intensive healthcare unit.
    Type: Application
    Filed: January 19, 2023
    Publication date: March 14, 2024
    Applicants: INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE (INSERM), CENTRE HOSPITALIER UNIVERSITAIRE DE POITIERS, UNIVERSITE DE POITIERS, SOMNO ENGINEERING SAS
    Inventors: Xavier DROUOT, Maud Nicol DE LA BELLEISSUE
  • Patent number: 11819492
    Abstract: The present invention relates to a compound of the following general formula (I): or a pharmaceutically acceptable salt and/or solvate thereof, for use as drug, particularly intended for inhibiting a programmed cell death route selected from the group consisting of ferroptosis, oxytosis and cellular necroptosis. The present invention also relates to a compound of general formula (I) for use as a drug for neuroprotection as well as for preventing and/or treating disorders associated with cellular necroptosis or ferroptosis. The present invention also relates to a pharmaceutical composition comprising a compound of general formula (I), or a pharmaceutically acceptable salt and/or solvate thereof. The present invention also encompasses the use of a compound of the general formula (I) for organs preservation.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: November 21, 2023
    Assignees: Institut National de la Sante et de la Recherche Medicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universite, Universite de Poitiers, Centre Hospitalier Universitaire de Poitiers
    Inventors: Stéphane Bach, Marie-Thérèse Dimanche-Boitrel, Claire Delehouze, Thierry Hauet
  • Publication number: 20230050418
    Abstract: The present invention relates to the production of benzene derivatives from furfural and its derivatives. The present invention also relates to the preparation of novel intermediates derived from furfural and its derivatives. The present invention describes new routes for converting furfural and its derivatives into benzene derivatives including novel intermediates.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 16, 2023
    Applicants: RHODIA OPERATIONS, LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS
    Inventors: Ivan Scodeller, Francois Jerome, Karine De Oliveira Vigier, Changru Ma, Raphael Johannes Wischert, Eric Muller
  • Publication number: 20220243312
    Abstract: The invention concerns a method for manufacturing an aircraft part, the part comprising a monocrystalline nickel-based superalloy substrate, the method consecutively implementing the steps of moulding the part at a moulding temperature greater than the melting temperature of the superalloy, and cooling the part, such that the monocrystalline superalloy has a ? phase and a ? phase, solution heat treatment of the part at a first temperature between the solves temperature of the ?? phase and the melting temperature of the superalloy, homogenising the crystalline structure or the part, cooling the part to ambient temperature, first tempering and second tempering.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 4, 2022
    Applicants: Safran Aircraft Engines, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), ECOLE NATIONALE SUPERIEURE DE MECANIQUE ET D'AEROTECHNIQUE DE POITIERS, UNIVERSITE DE POITIERS
    Inventors: Satoshi UTADA, Joël DELAUTRE, Sarah HAMADI, Jonathan CORMIER, Patrick VILLECHAISE, Jérémy RAME
  • Patent number: 11396686
    Abstract: The invention relates to a nickel-based superalloy comprising, in percentages by mass, 5.0 to 6.0% aluminum, 6.0 to 9.5% tantalum, 0 to 1.50% titanium, 8.0 to 10.0% cobalt, 6.0 to 7.0% chromium, 0.30 to 0.90% molybdenum, 5.5 to 6.5% tungsten, 0 to 2.50% rhenium, 0.05 to 0.15% hafnium, 0.70 to 4.30% platinum, 0 to 0.15% silicon, the remainder being nickel and unavoidable impurities. The invention also relates to a single-crystal blade comprising such an alloy and a turbomachine comprising such a blade.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: July 26, 2022
    Assignees: SAFRAN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS, ECOLE NATIONALE SUPERIEURE DE MECANIQUE AEROTECHNIQUE
    Inventors: Jérémy Rame, Jonathan Cormier
  • Patent number: 11370890
    Abstract: The present invention relates to a process for preparing a polymer/biological entities alloy, comprising a step of mixing a polymer and biological entities that degrade it, during a heat treatment, said heat treatment being performed at a temperature T above room temperature and said biological entities being resistant to said temperature T, characterized in that said biological entities are chosen from enzymes that degrade said polymer and microorganisms that degrade said polymer.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 28, 2022
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, UNIVERSITE DE POITIERS, VALAGRO CARBONE RENOUVELABLE POITOU-CHARENTES
    Inventors: Thierry Ferreira, Frederic Bataille, Cedric Dever, Jacques Barbier
  • Patent number: 11305295
    Abstract: The present invention relates to a method and a device for the electrostatic separation of granular mixtures of millimetric or sub-millimetric size, which are composed of non-conductive particles, non-conductive and conductive particles and conductive particles, simultaneously using the electric field E, aerodynamic force and gravity. Said forces are exerted on the particles which are previously charged in an intense electric field E generated by a DC voltage applied to two coaxial cylinders, that constitute electrodes. A mechanical cleaning system detaches the particles from the surface of the electrodes, and facilitates the recovery thereof in a collection system, under the action of cyclone vacuums, in such a way that the cleaning of the electrodes and the collection of the separated particles is continuously performed.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: April 19, 2022
    Assignees: Université de Poitiers, Centre National de la Recherche Scientifique
    Inventors: Lucien Dascalescu, Thami Zeghloul, Karim Medles
  • Patent number: 11224586
    Abstract: The present invention relates to a compound of the following general formula (I); or a pharmaceutically acceptable salt and/or solvate thereof, for use as drug, particularly intended for inhibiting a programmed cell death route selected from the group consisting of ferroptosis, oxytosis and cellular necroptosis. The present invention also relates to a compound of general formula (I) for use as a drug for neuroprotection as well as for preventing and/or treating disorders associated with cellular necroptosis or ferroptosis. The present invention also relates to a pharmaceutical composition comprising a compound of general formula (I), or a pharmaceutically acceptable salt and/or solvate thereof. The present invention also encompasses the use of a compound of the general formula (I) for organs preservation.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: January 18, 2022
    Assignees: Institut National de la Sante et de la Recherche Medicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universite, Universite de Poitiers, Centre Hospitalier Universitaire de Poitiers
    Inventors: Stéphane Bach, Marie-Thérèse Dimanche-Boitrel, Claire Delehouze, Thierry Hauet
  • Publication number: 20210214822
    Abstract: The invention relates to a nickel-based superalloy comprising, in percentages by mass, 5.0 to 6.0% aluminum, 6.0 to 9.5% tantalum, 0 to 1.50% titanium, 8.0 to 10.0% cobalt, 6.0 to 7.0% chromium, 0.30 to 0.90% molybdenum, 5.5 to 6.5% tungsten, 0 to 2.50% rhenium, 0.05 to 0.15% hafnium, 0.70 to 4.30% platinum, 0 to 0.15% silicon, the remainder being nickel and unavoidable impurities. The invention also relates to a single-crystal blade comprising such an alloy and a turbomachine comprising such a blade.
    Type: Application
    Filed: June 4, 2019
    Publication date: July 15, 2021
    Applicants: SAFRAN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS, ECOLE NATIONALE SUPERIEURE DE MECANIQUE AEROTECHNIQUE
    Inventors: Jérémy RAME, Jonathan CORMIER
  • Patent number: 11029350
    Abstract: Some embodiments are directed to a method for detecting harmonic pollution in an electrical distribution network carrying a three-phase current, including a step of measuring the voltages and strengths of the current, for each of said phases, at a counting point of the network; a step of calculating a first quaternion impedance corresponding to the fundamental frequency of the current; a step of calculating at least one second quaternion impedance corresponding to a harmonic frequency of the current, these impedances being calculated by converting the voltages and strengths in a two-dimensional frame of reference defined according to an angle that is dependent on said frequency in order to provide a system of two vectors of three quantities, ud, uq, uo and id, iq, io, respectively.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: June 8, 2021
    Assignee: UNIVERSITÉ DE POITIERS
    Inventor: Laurent Rambault
  • Patent number: 10832595
    Abstract: Disclosed is a medico-surgical simulator and to a corresponding method. The medico-surgical simulator includes a vascularization device and/or a ventilation device, as well as a regulation device. The medico-surgical simulator is arranged so as to be connected to a cadaver and to vascularize an arterial system of the cadaver via the vascularization device and/or to ventilate a respiratory system of the cadaver via the ventilation device. The regulation device controls the vascularization and ventilation devices in such a way as to simulate cardiorespiratory functions for providing surgical training carried out on the cadaver with a very high degree of realism.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: November 10, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS, CENTRE HOSPITALIER UNIVERSITAIRE DE POITIERS, INSERM—INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE
    Inventors: Jean-Pierre Richer, Jean-Pierre Faure, Denis Oriot, Cyril Breque, Pierre Olivier Delpech, Daniel-Aïham Ghazali
  • Patent number: 10829598
    Abstract: The present invention relates to a process for preparing a polymer/biological entities alloy, comprising a step of mixing a polymer and biological entities that degrade it, during a heat treatment, said heat treatment being performed at a temperature T above room temperature and said biological entities being resistant to said temperature T, characterized in that said biological entities are chosen from enzymes that degrade said polymer and microorganisms that degrade said polymer.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: November 10, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS, UNIVERSITE DE POITIERS, VALAGRO CARBONE RENOUVELABLE POITOU-CHARENTES
    Inventors: Thierry Ferreira, Frederic Bataille, Cedric Dever, Jacques Barbier
  • Patent number: 10626242
    Abstract: The invention relates to a plastic compound comprising at least one polyolefin and a biological entity that degrades said polyolefin. The invention further relates to a process for preparing a plastic article wherein at least one polyolefin and one biological entity that degrades said polyolefin are mixed at a temperature at which the polyolefin is in a partially or totally molten state.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 21, 2020
    Assignees: CARBIOS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS
    Inventors: Thierry Ferreira, Frederique Guillamot, Steven Colas
  • Patent number: 10590060
    Abstract: A process for synthesizing at least one levulinate ester, said process comprising the reaction of furfuryl alcohol with at least one other alcohol in the presence of water and at least one catalyst, said furfuryl alcohol being present in a quantity of at least 5% by weight, based on the total weight of the alcohols, and said catalyst comprising at least one triflate ligand and at least one metal selected from bismuth, gallium, aluminum, tin and iron.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 17, 2020
    Assignees: LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS
    Inventors: Alban Chappaz, Francois Jerome, Karine De Oliveira Vigier, Eric Muller, Jonathan Lai, Matthieu Corbet, Didier Morvan
  • Patent number: 10508269
    Abstract: The present invention relates to a new isolated polypeptide comprising an amino acid sequence having at least 75%, 80%, 85%, 90%, 95%, 99% or 100% identity to the full length amino acid sequence set forth in SEQ ID NO:1, and having a polyester degrading activity, and uses thereof.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: December 17, 2019
    Assignees: CARBIOS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE POITIERS
    Inventors: Luen-Luen Li, Thierry Ferreira, Willy Aucher, Steven Colas, Linette Lionelle Kadri
  • Patent number: 10431984
    Abstract: The invention relates to a system for generating electric power, comprising: an alternator (1) for coupling with a drive system (7), supplying an AC voltage to an output bus (10); a reversible AC/DC converter (2) in which the AC bus (6) is connected to the output bus (10) of the alternator (1); an electricity-storage element (3) connected to the DC bus (9) of the converter (2); a controller (4) arranged to react to a transient state of load-shedding or charging impact by controlling the converter (2) so as to collect energy on the output bus (10) of the alternator (2) and to store same in the storage element (3) in the case of load-shedding, and to collect energy in the storage element (3) and to inject same into the output bus (10) in the case of charging impact, the converter (2) being controlled so as to inject currents to compensate for harmonic currents into the AC bus (10) of the alternator (1).
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: October 1, 2019
    Assignees: MOTEURS LEROY-SOMER, UNIVERSITE DE POITIERS
    Inventors: Emile Mouni, Philippe Manfe, Faycal Bensmaine, Slim Tnani, Gerard Champenois
  • Patent number: 10426758
    Abstract: The present invention relates to a compound of the following general formula (I) or a pharmaceutically acceptable salt and/or solvate thereof, for use as inhibitor of cellular necroptosis. The present invention also relates to a pharmaceutical composition comprising a compound of general formula (I), or a pharmaceutically acceptable salt and/or solvate thereof, for use for preventing and/or treating disorders associated with cellular necroptosis. The present invention also encompasses the use of a compound of the general formula (I) for organs preservation.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: October 1, 2019
    Assignees: Institut National de la Sante et de la Recherche Medicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Universite De Poitiers, Sorbonne Universite, Universite Claude Bernard Lyon 1
    Inventors: Marie-Thérèse Dimanche-Boitrel, Stéphane Bach, Claire Delehouze, Yvette Mettey, Peter Goekjian, Arnaud Comte