Patents Assigned to Ecole Polytechnique
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Patent number: 11058575Abstract: There is described a method for delivering exogenous biomolecules into an eye. The method generally has the steps of injecting, into a region of the eye, a mixture having a plurality of exogenous biomolecules and a plurality of plasmonic structures, the plasmonic structures having a plasmonic resonance wavelength, the plasmonic structures adjoining membranes of target cells in said region due to said injecting; and irradiating said region of said eye with a laser beam having a wavelength being offset to said plasmonic resonance wavelength, said irradiating causing the plasmonic structures to form pores in said membranes of said target cells, allowing at least some of the exogenous biomolecules to be delivered into the target cells via said pores.Type: GrantFiled: October 24, 2018Date of Patent: July 13, 2021Assignee: ÉCOLE POLYTECHNIQUEInventors: Michel Meunier, Ariel Wilson, Éric Bergeron, Javier Mazzaferri, Santiago Costantino, Przemyslaw Sapieha
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Patent number: 11060513Abstract: The invention relates to an ion thruster, comprising: a chamber, a reservoir, comprising a solid propellant (PS), housed in the chamber and comprising a conductive jacket provided with an orifice; means for forming an ion-electron plasma in the chamber, which means are able to sublime the solid propellant in the reservoir, then to generate said plasma in the chamber from the sublimed propellant coming from the reservoir through the orifice; a means for extracting and accelerating the ions and electrons of the plasma out of the chamber, which means comprises at least two grids at one end (E) of the chamber; a radiofrequency AC voltage source for generating a radiofrequency signal comprised between the plasma frequencies of the ions and of the electrons, arranged in series with a capacitor and connected, by one of its outputs and via this capacitor, to one of the grids, with the other grid being connected to the other output of said voltage source; said means for extracting and accelerating and said voltageType: GrantFiled: August 30, 2016Date of Patent: July 13, 2021Assignees: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Dmytro Rafalskyi, Ane Aanesland
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Publication number: 20210196517Abstract: A device (100) is provided for treating diseases that produce elevated intraocular pressures, such as glaucoma, wherein the device (100) includes a housing shell (101) defining a cavity (107) between a first end (102) and a second end (104) of the housing shell (101), and an elastic membrane (110) disposed within the cavity (107) to divide the cavity (107) into a fluidic channel (106) that permits a flow of fluid from the first end (102) to the second (104) end and a sealed cavity (112). The elastic membrane (110) deforms to change the volume of the sealed cavity (107) responsive to pressure fluctuations between the first and second ends (102, 104), thereby varying the fluidic resistance of the flow of fluid through the fluidic channel (106).Type: ApplicationFiled: September 6, 2019Publication date: July 1, 2021Applicant: Ecole Polytechnique Federale De Lausanne (EPFL)Inventors: Nikolaos STERGIOPULOS, Constantinos STERGIOPULOS
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Patent number: 11043366Abstract: A method of analyzing molecules, comprising: generating ions from a sample of molecules; cooling the generated ions below ambient temperature; fragmenting at least some of the cooled ions by irradiating the ions with light at a plurality of different wavelengths (?) within one or more predetermined spectral intervals; recording a fragment mass spectrum of the fragmented ions comprising a detected signal (I) versus m/z over a predetermined range of m/z values for each of the plurality of different wavelengths (?), thereby recording a two-dimensional dependency of the detected signal (I) on m/z and irradiation wavelength (?); and determining from the recorded two-dimensional dependency an identity of at least one of the generated ions and/or relative abundances of different generated ions and thereby determining an identity of at least of one of the molecules and/or relative abundances of different molecules in the sample.Type: GrantFiled: January 15, 2020Date of Patent: June 22, 2021Assignees: Thermo Fisher Scientific (Bremen) GmbH, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Alexander Makarov, Oleg Boyarkine, Vladimir Kopysov
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Publication number: 20210175677Abstract: A method for generating ultrashort pulses includes directing a master beam having ultrashort pulses and at least one slave beam through an optical gate material. The intensity of the slave beam upstream of the optical gate material is lower than that of the master beam upstream of the optical gate material. The optical gate material and the pulses of the master beam are chosen to induce a Kerr effect when the master beam passes through the optical gate material, the Kerr effect producing a modulation of the phase of the slave beam in association with pulses of the master beam when the slave beam passes through the optical gate material. The modulation of the phase of the slave beam is transformed into a modulation of the amplitude thereof using a complementary optical device to generate a slave beam downstream of the optical gate material having ultrashort pulses.Type: ApplicationFiled: April 19, 2019Publication date: June 10, 2021Applicants: ECOLE POLYTECHNIQUE, INSTITUT D'OPTIQUE GRADUATE SCHOOL (IOGS), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PARIS SACLAYInventors: Dimitrios PAPADOPOULOS, Xavier DELEN, Frederic DRUON
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Publication number: 20210158962Abstract: A real-time diagnosis aid method including: (a) providing a decision-support system for autonomous medical diagnosis to a user of a medical system, the system comprising a display module and software modules embodied on a computer readable medium; (b) generating on the display module an ordered list of diagnostic clues to look at by the user according to the diagnostic clues already filled in as absent or present, the ordered list being based on the relevance of looking at respective diagnostic clues to quickly lead to a diagnosis by the user; (c) receiving from the user, information on presence or absence of one or more diagnosis clues listed in the ordered list; and (d) processing the received information to update the ordered list and provide on the display module an indication of the probability of each possible diagnosis.Type: ApplicationFiled: November 22, 2019Publication date: May 27, 2021Applicants: Ecole Polytechnique, Centre National de la Recherche Scientifique, Université de Paris 5 René DescartesInventors: Stéphanie Allassonniere, Remi Besson, Erwan Le Pennec
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Patent number: 11008262Abstract: Provided herein is a composition for use as a hardening regulator, e.g. hardening accelerator or hardening retarder, for building materials, as well as methods for producing thereof. The composition is characterized by a biphasic nature in which solid calcium silicate nanoparticles are dispersed in an aqueous solution comprising inorganic water soluble iron, and possibly zinc, silicate and calcium, species. Additional components such as inorganic ions and silica nanoparticles can be present. Depending on the relative ratio of each component, the composition can be used either for retarding or for accelerating the hardening process of a building material such as cement or concretes. The so-obtained building material further shows an enhanced strength upon compressive forces applied thereon.Type: GrantFiled: July 12, 2017Date of Patent: May 18, 2021Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)Inventors: Abhishek Kumar, Paul Bowen
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Patent number: 10989612Abstract: An acquisition device includes a wall and a transducer constituted by a body on which electrodes are fastened spaced apart from one another. An electrical impedance of the transducer is variable as a function of deformation of the transducer. When looking in a direction perpendicular to a surface of the wall, at least two electrodes of the plurality of electrodes are spaced apart from each other. The transducer is incorporated under the surface of the wall.Type: GrantFiled: March 27, 2015Date of Patent: April 27, 2021Assignees: INSTITUT FRANCAIS DES SCIENCES ET TECHNOLOGIES DES TRANSPORT, DE L'AMENAGEMENT ET DES RESEAUX, CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS, ECOLE POLYTECHNIQUEInventors: Berengere Lebental, Boutheina Ghaddab, Vincent Gaudefroy, Eduardo Ruiz-Hitzky, Pilar Aranda Gallego, Cristina Ruiz Garcia, Birger Hennings
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Publication number: 20210113615Abstract: The invention relates to heterodimeric inactivatable chimeric antigen receptors (CARs) and their use for treatment.Type: ApplicationFiled: April 12, 2019Publication date: April 22, 2021Applicants: Ludwig Institute for Cancer Research Ltd., École Polytechnique Fédérale de LausanneInventors: George COUKOS, Melita IRVING, Bruno CORREIA, Pablo GAINZA-CIRAUQUI, Greta Maria Paola GIORDANO ATTIANESE
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Patent number: 10985253Abstract: The present invention relates, for example, to a semiconductor structure containing multiple parallel channels in which several parallel conductive channels are formed within the semiconductor structure. Electric contact or electrostatic control over all these channels is done by three-dimensional electrode structures. The multiple channel structure with three-dimensional electrodes can be applied to semiconductors devices such as field effect transistors, diodes, and other similar electronic or quantum-effect devices. This structure is practical for materials where multiple parallel conduction channels can be formed, such as in III-V semiconductors. Ill-Nitride semiconductors with such structures are described which can lead to increased power density, reduced on-resistance and improved device performance, in addition to reducing dynamic on-resistance, and improving the stability of their threshold voltage and reliability.Type: GrantFiled: November 14, 2017Date of Patent: April 20, 2021Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)Inventors: Elison de Nazareth Matioli, Jun Ma
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Patent number: 10984563Abstract: A method of displaying an image on a see-through display comprises: obtaining a first electro-magnetic radiation matrix of radiation intensity values of an object; dividing the first matrix into a second matrix representing a first subset of the radiation intensity values, and a third matrix representing a second subset of the radiation intensity values; generating a first histogram for the second matrix; equalizing the first histogram to obtain an equalised second histogram; generating a first grayscale image representing the first subset of the radiation intensity values; colouring the first grayscale image with a first colourmap to obtain a first colour image; generating a second grayscale image representing the second subset of the radiation intensity values; colouring the second grayscale image with a second colourmap to obtain a second colour image; combining the first colour image and the second colour image; and displaying the combined colour image on the see-through display.Type: GrantFiled: December 20, 2017Date of Patent: April 20, 2021Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Adrien Birbaumer, Martinus Bosch, Jason Racine, Sabine Süsstrunk
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Patent number: 10981004Abstract: The present disclosure refers to systems for electrical neurostimulation of a spinal cord of a subject in need of nervous system function support. In one example, a system comprises a signal processing device configured to receive signals from the subject and operate signal-processing algorithms to elaborate stimulation parameter settings; one or more multi-electrode arrays suitable to cover a portion of the spinal cord of the subject; and an Implantable Pulse Generator (IPG) configured to receive the stimulation parameter settings from the signal processing device and simultaneously deliver independent current or voltage pulses to the one or more multiple electrode arrays, wherein the independent current or voltage pulses provide multipolar spatiotemporal stimulation of spinal circuits and/or dorsal roots. Such system advantageously enables effective control of nervous system functions in the subject by stimulating the spinal cord, such as the dorsal roots of the spinal cord, with spatiotemporal selectivity.Type: GrantFiled: July 10, 2019Date of Patent: April 20, 2021Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)Inventors: Jocelyne Bloch, Grégoire Courtine, Nikolaus Wenger, Silvestro Micera, Marco Capogrosso
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Patent number: 10985806Abstract: Using a transformation based at least in part on a non-simple orthogonal or unitary matrix, data may be transmitted over a data bus in a manner that is resilient to one or more types of signal noise, that does not require a common reference at the transmission and acquisition points, and/or that has a pin-efficiency that is greater than 50% and may approach that of single-ended signaling. Such transformations may be implemented in hardware in an efficient manner. Hybrid transformers that apply such transformations to selected subsets of signals to be transmitted may be used to adapt to various signal set sizes and/or transmission environment properties including noise and physical space requirements of given transmission environments.Type: GrantFiled: July 15, 2019Date of Patent: April 20, 2021Assignee: Ecole Polytechnique Fédérale De LausanneInventors: Harm Cronie, Amin Shokrollahi
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Publication number: 20210107851Abstract: The present invention relates to a method for preparing monomers via depolymerisation from lignocellulose-containing biomass.Type: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Applicant: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Jeremy Scott LUTERBACHER, Li SHUAI
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Patent number: 10974043Abstract: An implantable device for intrafascicular stimulation and/or sensing of a peripheral nerve, including a blocking element adapted for wrapping a nerve, comprising an access point and an exit point, and an electrode adapted to traverse the blocking element via the access point and the exit point having a distal end, a proximal end and an elongated body in between, the electrode being electrically isolated from the surrounding environment except that for an active site. In another aspect, the invention features a system comprising the implantable device of the invention operably coupled with an external device such an electrostimulator and/or a sensing device for sensing and recording electrical nerve signals.Type: GrantFiled: September 29, 2017Date of Patent: April 13, 2021Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNEInventors: Stanisa Raspopovic, Francesco Maria Petrini, Silvestro Micera
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Dual-frequency-comb spectrometer and spectroscopy method for spectroscopic investigation of a sample
Patent number: 10969276Abstract: A dual-frequency-comb spectrometer and a method for spectroscopic investigation of a sample are described. The spectrometer includes first and second frequency comb devices for emitting laser pulses along first and second light paths, wherein the repetition frequency of the laser pulses emitted by the second device is offset from that of the first device. First and second multi-core waveguides including at least two separate single core waveguides having field-coupling via a coupling gap therebetween are arranged in the first and second light paths. The sample is irradiated by the second frequency comb in the second light path. A detector device is arranged in a third light path where the first and second light paths are combined, for simultaneously sensing the first frequency comb and the second frequency comb after an interaction with the sample. A computing device receives output of the detector device and calculates spectroscopic properties of the sample.Type: GrantFiled: June 19, 2019Date of Patent: April 6, 2021Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Tobias Kippenberg, Hairun Guo, Junqiu Liu, Wenle Weng -
Publication number: 20210085973Abstract: A polymer-based optoelectronic interface comprises an elastomeric substrate (10) and a plurality of discrete photovoltaic pixel elements (20) disposed on top of the substrate. Each pixel element comprises at least one active layer comprising a semiconducting polymer or polymer mixture. The pixel elements are excitable by light to generate an electric signal via a photovoltaic process. For mechanically protecting the pixel elements, an elastomeric encapsulation layer (30) can be disposed on top of the substrate, the encapsulation layer defining access openings (31) for the pixel elements (20). Pillar-like structures (40) can be disposed on the pixel elements. Methods for fabricating such an optoelectronic interface are also disclosed. The optoelectronic interface can be used as a retinal prosthesis.Type: ApplicationFiled: March 31, 2017Publication date: March 25, 2021Applicant: Ecole Polytechnique Fédérale de Lausanne (EPFL)Inventors: Diego GHEZZI, Marta Jole Ildelfonsa AIRAGHI LECCARDI, Laura FERLAUTO
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Patent number: 10952627Abstract: A preferred frequency is identified, being usable to stimulate a neurological target within a mammalian body using at least one microelectrode positioned at or near the target. To establish efficient and effective stimulation, an impedance analyzer is provided for measuring electrical impedance values indicative of a microelectrode-tissue interface across a range of different frequencies. A preferred one of the measured electrical impedance values is identified as being closest to a pure resistance. The neurological target can then be stimulated at or near the frequency associated with the preferred impedance value (peak resistance frequency), thereby promoting desirable traits, such as optimum charge transfer, minimum signal distortion, increased stimulation efficiency, and prevention of microelectrode corrosion. The peak resistance frequency can be used to determine an preferred pulse shape.Type: GrantFiled: December 31, 2018Date of Patent: March 23, 2021Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNEInventors: André Mercanzini, Philippe Renaud
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Patent number: 10953101Abstract: Several embodiments of the present disclosure relate to therapeutic compositions configured to target the liver of a subject and that are useful in the treatment or prevention of one or more of transplant rejection, autoimmune disease, food allergy, and immune response against a therapeutic agent. In several embodiments, the compositions are configured to target the liver and deliver antigens to which tolerance is desired. In several embodiments, the compositions are configured for clearance of a circulating protein or peptide or antibody associated with one or more of the above-mentioned maladies. Methods and uses of the compositions for induction of immune tolerance are also disclosed herein.Type: GrantFiled: March 19, 2018Date of Patent: March 23, 2021Assignee: École Polytechnique Fédérale de Lausanne (EPFL)Inventors: Jeffrey A. Hubbell, David Scott Wilson
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Patent number: 10947637Abstract: The invention relates to a method for making nanopores in thin layers or monolayers of transition metal dichalcogenides that enables accurate and controllable formation of pore within those thin layer(s) with sub-nanometer precision.Type: GrantFiled: June 5, 2019Date of Patent: March 16, 2021Assignees: Ecole Polytechnique Federale De Lausanne (EPFL), Roche Sequencing Solutions, Inc.Inventors: Jiandong Feng, Ke Liu, Aleksandra Radenovic, Yann Astier