Patents by Inventor Laurent Dupont
Laurent Dupont 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: 20240295755Abstract: A contact lens, e.g., of the scleral type, having user-controllable colour changing. An electro-optical structure including at least one layer of a bistable electro-optical absorbent material, which, under the effect of the application of an electric field, can pass from at least one first stable state to at least one second stable state having different colorimetric absorption properties, and vice versa under the effect of the application of an electric field of opposite polarity. This change in state of the material leading to an alteration to the visible colour of the contact lens. The electro-optical structure extending in an annular region intended to cover the iris at least partially while leaving a central zone clear. An electronic circuit encapsulated in the lens and configured to subject the material to an electric field causing the change in state thereof in response to receiving a corresponding control signal.Type: ApplicationFiled: March 16, 2022Publication date: September 5, 2024Inventors: Jean-Louis DE BOUGRENET DE LA TOCNAYE, Laurent DUPONT, Emmanuel DANIEL, Vincent NOURRIT, Christian PERSON
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Patent number: 12030678Abstract: A method for packaging products, in particular oxygen-sensitive ones, in containers, each of the containers having an opening. The set-up of the controlled atmosphere is carried out in a transfer cabinet inside which the open containers progress in the direction of the closure cabinet, by the following combined actions: an action a) of injecting a process gas flow into the closure cabinet downstream of the transfer cabinet according to the progress direction of the open containers, and an action b) of vacuumising the open containers present inside the transfer cabinet.Type: GrantFiled: February 28, 2020Date of Patent: July 9, 2024Assignee: BONDUELLEInventors: Sébastien Senechal, Christian Ducez, Laurent Dupont
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Patent number: 11641954Abstract: A device for dispensing a bulk product such as cereals or condiments, including at the top a threaded nozzle for securing to the neck of a container and at the bottom a dispensing opening. A rotary shutter is provided, including a first portion provided with an actuating handle movable relative to a second portion, these two portions comprising respective walls and openings overlapping in a proportion that is dependent on the position of the handle.Type: GrantFiled: January 31, 2020Date of Patent: May 9, 2023Assignee: BULK AND COInventors: Frederic Cohen-Solal, Tammy Boulanger, Laurent Dupont, Emilia Haud, Arnaud Duqueyroix, Patrick Maerten
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Publication number: 20220144464Abstract: A method for packaging products, in particular oxygen-sensitive ones, in containers, each of the containers having an opening. The set-up of the controlled atmosphere is carried out in a transfer cabinet inside which the open containers progress in the direction of the closure cabinet, by the following combined actions: an action a) of injecting a process gas flow into the closure cabinet downstream of the transfer cabinet according to the progress direction of the open containers, and an action b) of vacuumising the open containers present inside the transfer cabinet.Type: ApplicationFiled: February 28, 2020Publication date: May 12, 2022Applicant: BONDUELLEInventors: Sébastien SENECHAL, Christian DUCEZ, Laurent DUPONT
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Publication number: 20220095814Abstract: A device for dispensing a bulk product such as cereals or condiments, including at the top a threaded nozzle for securing to the neck of a container and at the bottom a dispensing opening. A rotary shutter is provided, including a first portion provided with an actuating handle movable relative to a second portion, these two portions comprising respective walls and openings overlapping in a proportion that is dependent on the position of the handle.Type: ApplicationFiled: January 31, 2020Publication date: March 31, 2022Inventors: Frederic COHEN-SOLAL, Tammy BOULANGER, Laurent DUPONT, Emilia HAUD, Arnaud DUQUEYROIX, Patrick MAERTEN
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Patent number: 10843536Abstract: An adaptive screen including at least one liquid crystal shutter. At least one of the shutters includes at least two active zones which are addressed by a control signal which permits the switchover of the at least one corresponding shutter between a passing configuration, in which a transmittance is equal to a maximum value, and a blocking configuration, in which the transmittance is equal to a minimum value. A “principal” active zone covers a surface area of the adaptive screen which is equal to or lower than 60% of the surface area of the adaptive screen, in order to reduce the response time of the principal active zone.Type: GrantFiled: January 17, 2018Date of Patent: November 24, 2020Assignee: VALEO VISIONInventors: David Hue, Kedar Sathaye, Jean-Louis De Bougrenet, Emmanuel Daniel, Laurent Dupont, Samir Abbas, Samir Bentahar
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Patent number: 10705400Abstract: A reflecting cell including at least two substrates each covered by an electrode and facing each other, the substrates delimitating between them a volume which separates them and which is filled with a bistable liquid crystal-type material with a threshold field, for example a cholesteric liquid crystal, both electrodes being intended to be connected to a voltage source. This cell is characterized in that at least one of the electrodes is formed by associating a pattern, which does not entirely cover the surface of the substrate considered, and a conducting layer which covers the surface of the substrate considered, the conductivity of the material of the layer being lower than that of the material of the pattern.Type: GrantFiled: October 22, 2015Date of Patent: July 7, 2020Assignees: NEXTER SYSTEMS, INSTITUT MINES TELECOM-IMT ATLANTIQUE-BRETAGNE-PAYS DE LA LOIREInventors: Laurent Dupont, Suman Manna
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Patent number: 10191347Abstract: The invention relates to a reflecting cell including at least two substrates covered by an electrode and facing each other, the substrates delimiting between them a volume which separates them and which is filled with a cholesteric liquid crystal-type material, both electrodes being intended to be connected to a voltage source. This cell includes at least one half-wave plate arranged between both substrates and dividing the volume into two compartments, each enclosing a part of a same cholesteric liquid crystal.Type: GrantFiled: October 28, 2015Date of Patent: January 29, 2019Assignees: NEXTER SYSTEMS, INSTITUT MINES TELECOM—TELECOM BRETAGNEInventors: Laurent Dupont, Suman Manna
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Publication number: 20180201101Abstract: An adaptive screen including at least one liquid crystal shutter. At least one of the shutters includes at least two active zones which are addressed by a control signal which permits the switchover of the at least one corresponding shutter between a passing configuration, in which a transmittance is equal to a maximum value, and a blocking configuration, in which the transmittance is equal to a minimum value. A “principal” active zone covers a surface area of the adaptive screen which is equal to or lower than 60% of the surface area of the adaptive screen, in order to reduce the response time of the principal active zone.Type: ApplicationFiled: January 17, 2018Publication date: July 19, 2018Applicant: VALEO VISIONInventors: David HUE, Kedar SATHAYE, Jean-Louis DE BOUGRENET, Emmanuel DANIEL, Laurent DUPONT, Samir ABBAS, Samir BENTAHAR
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Publication number: 20180051212Abstract: A material is proposed for making an electro-optical shutter device. The material includes a host nematic liquid crystal, at least one guest chiral dopant and one guest black dichroic dye. The birefringence (?n) of the host nematic liquid crystal is greater than 0.20. The concentration of the at least one chiral dopant is adjusted so that the material has a pitch in the range of 500 nm to 800 nm. The concentration of the guest black dichroic dye ranges from 2% to 4% by weight of the material. The dichroic ratio of the guest black dichroic dye is greater than or equal to 8.Type: ApplicationFiled: February 26, 2016Publication date: February 22, 2018Inventors: Jean-Louis De Bougrenet De La Tocnaye, Laurent Dupont, Kedar Sathaye, SumanKalyan Manna
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Publication number: 20170315398Abstract: The invention relates to a reflecting cell including at least two substrates covered by an electrode and facing each other, the substrates delimiting between them a volume which separates them and which is filled with a cholesteric liquid crystal-type material, both electrodes being intended to be connected to a voltage source. This cell includes at least one half-wave plate arranged between both substrates and dividing the volume into two compartments, each enclosing a part of a same cholesteric liquid crystal.Type: ApplicationFiled: October 28, 2015Publication date: November 2, 2017Applicants: NEXTER SYSTEMS, INSTITUT MINES TELECOM - IMT ATLANTIQUE - BRETAGNE - PAYS DE LA LOIREInventors: Laurent DUPONT, Suman MANNA
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Publication number: 20170307927Abstract: A reflecting cell including at least two substrates each covered by an electrode and facing each other, the substrates delimitating between them a volume which separates them and which is filled with a bistable liquid crystal-type material with a threshold field, for example a cholesteric liquid crystal, both electrodes being intended to be connected to a voltage source. This cell is characterized in that at least one of the electrodes is formed by associating a pattern, which does not entirely cover the surface of the substrate considered, and a conducting layer which covers the surface of the substrate considered, the conductivity of the material of the layer being lower than that of the material of the pattern.Type: ApplicationFiled: October 22, 2015Publication date: October 26, 2017Applicants: NEXTER SYSTEMS, INSTITUT MINES TELECOM - IMT ATLANTIQUE - BRETAGNE - PAYS DE LA LOIREInventors: Laurent DUPONT, Suman MANNA
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Publication number: 20170202352Abstract: Items are stored on a support by taking an elongate cord with a first loop formed at a first end and a second loop formed at a second end, at the first end of the cord wrapping the cord around an elongate handle of an item to be stored, arranging the first end of the cord when wrapped to pass through the first loop so as to attach the first end to the member and hanging the second end of the cord from a support in a storage area so that the elongate handle is held by friction of the cord on the handle.Type: ApplicationFiled: January 13, 2017Publication date: July 20, 2017Inventor: Laurent Dupont
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Patent number: 9227747Abstract: A method for packaging non-liquid food products, particularly those sensitive to oxygen, such as vegetables, in a container with a low oxygen content, the container including an opening. The method includes the following steps: the container is filled with the products, in a non-controlled atmosphere; the air is removed from the container by filling same to capacity with a liquid; the full container is placed in a non-oxidizing atmosphere formed by at least one non-oxidizing gas; the liquid is fully or partially emptied from the container in a non-oxidizing atmosphere while the food products are kept in the container, such that the at least one non-oxidizing gas replaces the liquid in the container; and the above-mentioned container opening is closed in a gas-tight manner in a non-oxidizing atmosphere. A unit for carrying out the method is also described.Type: GrantFiled: September 19, 2011Date of Patent: January 5, 2016Assignee: BONDUELLEInventors: Laurent Dupont, Stéphane Gauthier
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Publication number: 20150381969Abstract: A system for displaying N multimedia streams, including multiple pairs of viewing spectacles and a displaying medium. The system obtains N multimedia streams, each stream including two multimedia substreams among 2×N multimedia substreams, and has N sources generating the 2×N substreams on the displaying medium. Each source has an encoder for coding two of the 2×N multimedia substreams, each substream being coded with a set of N coding modes each using a specific set of at least two states, having at least 2N possible combinations of states, each substream being coded with one of the possible combinations of states in order to visualize a given stream from the N multimedia stream. At least one pair spectacles includes a decoder for decoding, for each eyepiece, one of the substreams of the given stream and having N decoding modes corresponding to the N coding modes used for coding the substreams.Type: ApplicationFiled: February 3, 2014Publication date: December 31, 2015Applicants: INSTITUT MINES TELECOM, EYES TRIPLE SHUTInventors: Jean-Louis De Bougrenet de la Tocnaye, Emmanuel Daniel, Laurent Dupont, Daniel Stoenescu, Frederic Lucarz
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Patent number: 9180991Abstract: The invention relates to a method for packaging a liquid product (1), such as a food product, and, in particular, a product sensitive to oxygen, in a container (2) with a low oxygen content, said container including an opening (3). The method of the invention comprises the following steps: the air is removed from the container by filling same to capacity with the liquid product in a non-controlled atmosphere; the full container is placed in a non-oxidizing atmosphere formed by at least one non-oxidizing gas; the liquid product is partially emptied from the container in a non-oxidizing atmosphere, such that the at least one non-oxidizing gas replaces the product discharged from the container; and the above-mentioned container opening is closed in a gas-tight manner while the container is partially full of the liquid product in a non-oxidizing atmosphere.Type: GrantFiled: September 19, 2011Date of Patent: November 10, 2015Assignee: BONDUELLEInventors: Laurent Dupont, Stéphane Gauthier
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Patent number: 8887286Abstract: The present disclosure describes a continuous anomaly detection method and system based on multi-dimensional behavior modeling and heterogeneous information analysis. A method includes collecting data, processing and categorizing a plurality of events, continuously clustering the plurality of events, continuously model building for behavior and information analysis, analyzing behavior and information based on a holistic model, detecting anomalies in the data, displaying an animated and interactive visualization of a behavioral model, and displaying an animated and interactive visualization of the detected anomalies.Type: GrantFiled: September 23, 2013Date of Patent: November 11, 2014Inventors: Laurent Dupont, Elizabeth B. Charnock, Steve Roberts, Eli Yawo Amesefe, Keith Eric Schon, Richard Thomas Oehrle
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Publication number: 20140096249Abstract: The present disclosure describes a continuous anomaly detection method and system based on multi-dimensional behavior modeling and heterogeneous information analysis. A method includes collecting data, processing and categorizing a plurality of events, continuously clustering the plurality of events, continuously model building for behavior and information analysis, analyzing behavior and information based on a holistic model, detecting anomalies in the data, displaying an animated and interactive visualization of a behavioral model, and displaying an animated and interactive visualization of the detected anomalies.Type: ApplicationFiled: September 23, 2013Publication date: April 3, 2014Applicant: Cataphora, Inc.Inventors: Laurent Dupont, Elizabeth B. Charnock, Steve Roberts, Eli Yawo Amesefe, Keith Eric Schon, Richard Thomas Oehrle
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Patent number: 8508586Abstract: Liquid crystal spectacles are provided for three-dimensional viewing of digital video content from a projector. The viewing spectacles include a first rectilinear polariser and a second rectilinear polariser respectively having polarisation axes P1 and P2, the polarisation axes P1 and P2 being parallel or perpendicular relative to each other. Furthermore, the liquid crystal has an adapted intrinsic tilt angle and is used in a half-wave blade configuration. The liquid crystal further includes first and second separate areas, each respectively located opposite a vision axis. The first area includes a first director and the second area includes a second director. The first and second directors are oriented so as to define an adapted angle between them. This enables a “non-one-eyed” vision while waiting for the projection of the film to start, and to obtain the best possible contrast between the two eyes of the user when viewing the digital video content.Type: GrantFiled: January 7, 2009Date of Patent: August 13, 2013Assignee: Institut Telecom/Telecom BretagneInventors: Jean-Louis De Bougrenet De La Tocnaye, Laurent Dupont, Emmanuel Daniel
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Patent number: 8368848Abstract: A method is provided for manufacturing an electrooptic cell, which includes two plates of optically transparent material and at least one thickness of a composite gel based on a smectic liquid crystal and on a polymer provided between the plates, wherein the gel is in a smectic phase at ambient temperature. The method includes injecting a mixture of a ferroelectric and/or anti-ferroelectric smectic liquid and a monomer between the plates, wherein the monomer content of the mixture is between 5 and 25% by weight. The mixture is heated to above its smectic phase/nematic phase transmission temperature so that the mixture is in the nematic phase. The mixture is irradiated, by ultraviolet radiation, so as to polymerize the monomer and thus obtain the gel. During the irradiation step, an electric or magnetic field is applied to the mixture.Type: GrantFiled: April 2, 2008Date of Patent: February 5, 2013Assignees: Institut Telecom/Telecom Bretagne, LixysInventors: Bertrand Caillaud, Pascal Gautier, Jean-Louis De Bougrenet De La Tocnaye, Laurent Dupont, Aline Guenot