Patents by Inventor Jerome Chevalier
Jerome Chevalier 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).
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Publication number: 20230400110Abstract: An assembly includes: a first fluidic module comprising a block comprising a first face, one or more central conduits, at least one lateral line connected to one of the central conduits, and a first closure member configured so as to close or open the at least one lateral line; and a second fluidic module comprising a block comprising a first face, a first central conduit, a first lateral conduit connected to the first central conduit, a second central conduit and a second lateral conduit connected to the second central conduit, and a second closure member configured so as to close or open the opening of the first lateral conduit and/or of the second lateral conduit; wherein the first face of each of the first and second fluidic modules is assembled with the face of a block of another fluidic module by contact between the two faces.Type: ApplicationFiled: November 9, 2021Publication date: December 14, 2023Inventors: Jérôme CHEVALIER, Thierry BROCKI
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Publication number: 20230295048Abstract: The present invention relates to a green body, a pre-ceramic body and a ceramic body based on metal oxide particles, in particular zirconium oxide. The present invention also relates to the method of producing said materials and to the use thereof, in particular in the field of dentistry.Type: ApplicationFiled: July 23, 2021Publication date: September 21, 2023Inventors: Erik CAMPOSILVAN, Omid AKHLAGHI, Vincent GARNIER, Yves JORAND, Jérôme CHEVALIER
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Publication number: 20220347598Abstract: The invention relates to a method for purifying a target substance starting from a fluid to be treated which comprises at least one impurity. The method comprises treatment of a stream of the fluid to be treated using a chromatography step in a first separation unit, collection of a fraction enriched with the target substance in a first tank, and viral inactivation of the fraction enriched with the target substance. The viral inactivation comprises passing the fraction enriched with the target substance through a second separation unit, passing a viral inactivation solution through the second separation unit, mixing, and collecting the mixture in the second tank to obtain a fraction depleted of active virus. The method further comprises treatment of the fraction depleted of active virus using a chromatography step in the second separation unit and collection of a fraction more enriched with the target substance.Type: ApplicationFiled: July 24, 2020Publication date: November 3, 2022Inventors: Jérôme CHEVALIER, Jean-Luc BEULAY, Thomas FLOUQUET, Hélène LAFONTAINE
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Patent number: 11040914Abstract: The present invention is directed to a porous pre-densified CeO2-stabilized ZrO2 ceramic having a density of 50.0 to 95.0%, relative to the theoretical density of zirconia, and an open porosity of 5 to 50% as well as to a densified CeO2-stabilized ZrO2 ceramic having a density of 97.0 to 100.0%, relative to the theoretical density of zirconia, and wherein the grains of the ceramic have an average grain size of 50 to 1000 nm, methods for the preparation of the pre-densified and densified ceramics and their use for the manufacture of dental restorations.Type: GrantFiled: April 25, 2019Date of Patent: June 22, 2021Assignee: Ivoclar Vivadent AGInventors: Christian Ritzberger, Frank Rothbrust, Marcel Schweiger, Nicolas Courtois, Jérôme Chevalier, Helen Reveron, Wolfram Höland, Volker Rheinberger
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Publication number: 20190248709Abstract: The present invention is directed to a porous pre-densified CeO2-stabilized ZrO2 ceramic having a density of 50.0 to 95.0%, relative to the theoretical density of zirconia, and an open porosity of 5 to 50% as well as to a densified CeO2-stabilized ZrO2 ceramic having a density of 97.0 to 100.0%, relative to the theoretical density of zirconia, and wherein the grains of the ceramic have an average grain size of 50 to 1000 nm, methods for the preparation of the pre-densified and densified ceramics and their use for the manufacture of dental restorations.Type: ApplicationFiled: April 25, 2019Publication date: August 15, 2019Inventors: Christian Ritzberger, Frank Rothbrust, Marcel Schweiger, Nicolas Courtois, Jérôme Chevalier, Helen Reveron, Wolfram Höland, Volker Rheinberger
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Patent number: 10315958Abstract: The present invention is directed to a porous pre-densified CeO2 stabilized ZrO2 ceramic having a density of 50.0 to 95.0%, relative to the theoretical density of zirconia, and an open porosity of 5 to 50% as well as to ceramic having a density of 97.0 to 100.0%, relative to the theoretical density of zirconia, and wherein the grains of the ceramic have an average grain size of 50 to 1000 nm, methods for the preparation of the pre-densified and densified ceramics and their use for the manufacture of dental restorations.Type: GrantFiled: June 20, 2013Date of Patent: June 11, 2019Assignee: Ivoclar Vivadent AGInventors: Christian Ritzberger, Frank Rothbrust, Marcel Schweiger, Nicolas Courtois, Jérôme Chevalier, Helen Reveron, Wolfram Höland, Volker Rheinberger
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Patent number: 10093583Abstract: A process is described, for producing zirconia-based multi-phasic ceramic composite materials, comprising the steps of: providing at least one ceramic suspension by dispersing at least one ceramic zirconia powder in at least one aqueous medium to obtain at least one matrix for such composite material; providing at least one aqueous solution containing one or more inorganic precursors and adding such aqueous solution to such ceramic suspension to surface modify such ceramic zirconia powder and obtain at least one additived suspension; quickly drying such additived suspension to obtain at least one additived powder; heat treating such additived powder to obtain at least one zirconia powder coated on its surface by second phases; and forming such zirconia powder coated on its surface by second phases.Type: GrantFiled: February 13, 2015Date of Patent: October 9, 2018Assignees: Politecnico Di Torino, Centre National De La Recherche Scientifique, Decoram Medical Ceramica CMBH, Universite Claude Bernard Lyon, Institut National Des Sciences Appliquees De LyonInventors: Laura Montanaro, Paola Palmero, Jerome Chevalier, Helen Reveron, Tobias Fuerderer
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Publication number: 20170057876Abstract: A process is described, for producing zirconia-based multi-phasic ceramic composite materials, comprising the steps of: providing at least one ceramic suspension by dispersing at least one ceramic zirconia powder in at least one aqueous medium to obtain at least one matrix for such composite material; providing at least one aqueous solution containing one or more inorganic precursors and adding such aqueous solution to such ceramic suspension to surface modify such ceramic zirconia powder and obtain at least one additived suspension; quickly drying such additived suspension to obtain at least one additived powder; heat treating such additived powder to obtain at least one zirconia powder coated on its surface by second phases; and forming such zirconia powder coated on its surface by second phases.Type: ApplicationFiled: February 13, 2015Publication date: March 2, 2017Inventors: Laura Montanaro, Paola Palmero, Jerome Chevalier, Helen Reveron, Tobias Fuerderer
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Patent number: 9403721Abstract: The invention relates to a composite ceramic material which comprises: (a) a first phase based on zirconia containing CeO2 as stabilizer, and (b) a second phase based on an aluminate. The invention also relates to a ceramic powder composition, processes for the preparation of the composite ceramic material and the ceramic powder composition as well as uses thereof.Type: GrantFiled: October 16, 2014Date of Patent: August 2, 2016Assignee: Ivoclar Vivadent AGInventors: Wolfram Holand, Elke Signer-Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jerome Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo
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Patent number: 9227873Abstract: A material is described in the form of a millimetric article constituted by coarse alumina particles with a median diameter in the range 10 to 200 ?m, said coarse particles being at a distance, from one interface to another, of less than 10 ?m, fine alumina particles with a median diameter in the range 0.5 to 10 ?m, said fine particles being at a distance, from one interface to another, of less than 5 ?m and being located in the space between the coarse particles, and a binder constituted by aluminium phosphate, said binder being located in the space between said fine and coarse particles, said material having a mesoporous volume, measured by mercury porosimetry, in the range 0.2 to 2 mL/g, a macroporous volume, measured by mercury porosimetry, in the range 0.05 to 0.2 mL/g and a BET specific surface area in the range 80 to 350 m2/g.Type: GrantFiled: November 27, 2012Date of Patent: January 5, 2016Assignee: IFP ENERGIES NOUVELLESInventors: Stefania Cassiano Gaspar, Delphine Bazer-Bachi, Loic Rouleau, Eric Lecolier, Jerome Chevalier, Yves Jorand
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Publication number: 20150191397Abstract: The present invention is directed to a porous pre-densified CeO2 stabilized ZrO2 ceramic having a density of 50.0 to 95.0%, relative to the theoretical density of zirconia, and an open porosity of 5 to 50% as well as to a densified CeO2 stabilized ZrO2 ceramic having a density of 97.0 to 100.0%, relative to the theoretical density of zirconia, and wherein the grains of the ceramic have an average grain size of 50 to 1000 nm, methods for the preparation of the pre-densified and densified ceramics and their use for the manufacture of dental restorations.Type: ApplicationFiled: June 20, 2013Publication date: July 9, 2015Inventors: Christian Ritzberger, Frank Rothbrust, Marcel Schweiger, Nicolas Courtois, Jérôme Chevalier, Helen Reveron, Wolfram Höland, Volker Rheinberger
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Publication number: 20150035210Abstract: The invention relates to a composite ceramic material which comprises: (a) a first phase based on zirconia containing CeO2 as stabilizer, and (b) a second phase based on an aluminate. The invention also relates to a ceramic powder composition, processes for the preparation of the composite ceramic material and the ceramic powder composition as well as uses thereof.Type: ApplicationFiled: October 16, 2014Publication date: February 5, 2015Inventors: Wolfram Holand, Elke Signer-Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jerome Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo
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Publication number: 20140377561Abstract: A material is described in the form of a millimetric article constituted by coarse alumina particles with a median diameter in the range 10 to 200 ?m, said coarse particles being at a distance, from one interface to another, of less than 10 ?m, fine alumina particles with a median diameter in the range 0.5 to 10 ?m, said fine particles being at a distance, from one interface to another, of less than 5 ?m and being located in the space between the coarse particles, and a binder constituted by aluminium phosphate, said binder being located in the space between said fine and coarse particles, said material having a mesoporous volume, measured by mercury porosimetry, in the range 0.2 to 2 mL/g, a macroporous volume, measured by mercury porosimetry, in the range 0.05 to 0.2 mL/g and a BET specific surface area in the range 80 to 350 m2/g.Type: ApplicationFiled: November 27, 2012Publication date: December 25, 2014Applicant: IFP ENERGIES NOUVELLESInventors: Stefania Cassiano Gaspar, Delphine Bazer-Bachi, Loic Rouleau, Eric Lecolier, Jerome Chevalier, Yves Jorand
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Patent number: 8889576Abstract: The invention relates to a composite ceramic material which comprises: (a) a first phase based on zirconia containing CeO2 as stabilizer, and (b) a second phase based on an aluminate. The invention also relates to a ceramic powder composition, processes for the preparation of the composite ceramic material and the ceramic powder composition as well as uses thereof.Type: GrantFiled: April 13, 2011Date of Patent: November 18, 2014Assignee: Ivoclar Vivadent AGInventors: Wolfram Höland, Elke Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jérôme Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo
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Patent number: 8796166Abstract: The invention relates to compositions based on Ce-stabilized ZrO2, and single- and multi-colored blanks made from oxide ceramics, and a process for their preparation, in which oxide ceramic powder is coated with a coloring substance, the coated powders are preferably graded and at least one colored powder is filled into a compression mould, the colored powder or powders are compressed to produce a shaped body, and the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations. The compositions exhibit high fracture toughness and high flexural strength.Type: GrantFiled: April 4, 2012Date of Patent: August 5, 2014Assignee: Ivoclar Vivadent AGInventors: Wolfram Höland, Christian Ritzberger, Elke Apel, Frank Rothbrust, Jérôme Chevalier, Dmitri Brodkin
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Patent number: 8486851Abstract: A process for manufacturing a sintered ceramic composite, based on silicon nitride and ?-eucryptite, includes a step of producing a first powder blend, consisting of a powder of silicon nitride in crystalline form and a powder of a first lithium aluminosilicate in crystalline form, the composition of which is the following: (Li2O)x(Al2O3)y(SiO2)z, the lithium aluminosilicate composition being such that the set of molar fractions (x,y,z) is different from the set (1,1,2).Type: GrantFiled: April 28, 2011Date of Patent: July 16, 2013Assignee: ThalesInventors: Laurent Blanchard, Gilbert Fantozzi, Aurélien Pelletant, Helen Reveron, Jérôme Chevalier, Yann Vitupier
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Patent number: D924426Type: GrantFiled: May 24, 2018Date of Patent: July 6, 2021Assignee: NOVASEP PROCESSInventors: Jerome Chevalier, Stephane Neveu, Yan Schnell
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Patent number: D924427Type: GrantFiled: May 24, 2018Date of Patent: July 6, 2021Assignee: NOVASEP PROCESSInventors: Jerome Chevalier, Stephane Neveu, Yan Schnell
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Patent number: D936236Type: GrantFiled: May 24, 2018Date of Patent: November 16, 2021Assignee: NOVASEP PROCESSInventors: Jerome Chevalier, Stephane Neveu, Yan Schnell
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Patent number: D936237Type: GrantFiled: May 24, 2018Date of Patent: November 16, 2021Assignee: NOVASEP PROCESSInventors: Jerome Chevalier, Stephane Neveu, Yan Schnell