Patents Assigned to Ecole Polytechnique
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Patent number: 11629175Abstract: The invention relates to a method for preparing PHFs-like Tau aggregates and to a method for identifying compounds that are inhibitors of Tau protein aggregation, blockers of Tau seeding and propagation, and imaging agents that specifically bind PHF.Type: GrantFiled: April 29, 2019Date of Patent: April 18, 2023Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Hilal A. Lashuel, Nadine Ait-Bouziad
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Patent number: 11628297Abstract: A biomedical device having improved handling features to be easily inserted into a cavity or recess is disclosed, as well as methods for using thereof, said device comprising a flat and soft substrate, comprising electrically conductive tracks, configured to interface a biological surface; and a rigid member located on a portion of said flat and soft substrate, said member being substantially composed of a mechanically adaptive material being fully or partially degradable upon a degrading/softening trigger.Type: GrantFiled: January 16, 2020Date of Patent: April 18, 2023Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Nicolas Vachicouras, Jennifer Macron, Stephanie P. Lacour
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Publication number: 20230114145Abstract: A composite multi-layer textile, comprising at least one nanofibre layer with nanofibres with diameters below 100 nm and one support layer with microfibres with diameters below three microns, wherein the layers were produced by electrospinning. The multi-layer textile shows a general transmittance at #=550 nm greater than 60%, which shows improved properties concerning transparency, breathability and robustness. This is achieved in that the at least one nanofibre layer and the support layer are fused, forming solid domains in the multi-layer textile, at closed areas of a pattern used in the production process, wherein the solid domains are separated from each other or connected, showing defined shapes, with regular or irregular spatial distribution, while the fibre morphology of nanofibres of the nanofibre layer and microfibres of support layer is preserved on top of the open areas beside the solid domains, attaining a general transmittance greater than that given by the sum of the individual layers.Type: ApplicationFiled: March 18, 2021Publication date: April 13, 2023Applicants: EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT, ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)Inventors: Davide Barana, Giuseppino Fortunato, Anne Géraldine Guex, René Rossi, Thierry Pelet, Klaus Schönenberger, Sacha Sidjanski, Diane Baatard
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Patent number: 11621410Abstract: The invention relates to a method for manufacturing an electrode, preferably an implantable electrode array comprising the following steps: Applying (101) a layer of electrically conducting material (4) above a substrate material (1) for forming the electrically conductive traces; applying (102) a layer of insulating material (6) directly on top of the layer of electrically conducting material (4) for covering the electrically conductive traces; patterning (103) the layer of insulating material (4) by partly exposing the layer of electrically conducting material (4) to form at least one contact area (8) on the layer of the electrically conducting material (4), wherein a mask for patterning the layer of insulating material (6) defines a region (9) in the at least one contact area (8) at which the insulating material (6) in the at least one contact area (8) remains; and partly applying (104) a top layer (13) of electrically conducting material (4) at the contact area (8) on top of the layer of insulating materiType: GrantFiled: December 6, 2016Date of Patent: April 4, 2023Assignee: École Polytechnique Fédérale de LausanneInventors: Diego Ghezzi, Marta Airaghi Leccardi
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Patent number: 11614769Abstract: Consensus protocols for asynchronous networks are usually complex and inefficient, leading practical systems to rely on synchronous protocols. The invention proposes an approach to simplify asynchronous consensus by building it atop a novel threshold logical clock abstraction, allowing the consensus protocol to operate in “virtual synchrony.” Leveraging accountable state machine techniques to detect and suppress Byzantine nodes, and verifiable secret sharing for random leader election, we obtain simple and efficient protocols for asynchronous Byzantine consensus.Type: GrantFiled: July 14, 2020Date of Patent: March 28, 2023Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventor: Bryan Ford
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Patent number: 11615285Abstract: In one aspect, a method includes generating a functional subgraph of a network from a structural graph of the network. The structural graph comprises a set of vertices and structural connections between the vertices. Generating the functional subgraph includes identifying a directed functional edge of the functional subgraph based on presence of structural connection and directional communication of information across the same structural connection.Type: GrantFiled: January 8, 2018Date of Patent: March 28, 2023Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)Inventors: Michael Wolfgang Reimann, Max Christian Nolte, Henry Markram, Kathryn Pamela Hess Bellwald, Ran Levi
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Patent number: 11612330Abstract: The invention relates to a photoplethysmography (PPG) sensing device comprising —a pulsed light source, —at least one pixel to create photo-generated electrons, synchronized with said pulsed light source. It is mainly characterized in that each pixel comprises: —a pinned photodiode (PPD) having two electronic connection nodes, —a sense node (SN), to convert the photo-generated electrons into a voltage, and —a Transfer Gate (TGtransfer) transistor, having its source electronically connected to one electronic connection node of said pinned photodiode (PPD), and being configured to act as a transfer gate (TG) between said pinned photodiode (PPD) and said sense node (SN), allowing the photo-generated electrons to sink when the light is pulsed-off, the photo-generated electrons integration when the light is pulsed-on and the transfer of at least part of the integrated photo-generated electrons to said sense node for a read-out.Type: GrantFiled: July 17, 2018Date of Patent: March 28, 2023Assignee: Ecole Polytechnique Fédérale De Lausanne (EPFL)Inventors: Assim Boukhayma, Antonino Caizzone, Christian Enz
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Patent number: 11611377Abstract: 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: April 20, 2021Date of Patent: March 21, 2023Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNEInventors: Harm Cronie, Amin Shokrollahi
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Patent number: 11600739Abstract: An apparatus for patterned processing includes a source of input gas, a source of energy suitable for generating a plasma from the input gas in a plasma region and a grounded sample holder configured for receiving a solid sample. The apparatus includes a mask arranged between the plasma region and the grounded sample holder, the mask having a first face oriented toward the plasma region and a second face oriented toward a surface of the solid sample to be processed, the mask including a mask opening extending from the first face to the second face, and an electrical power supply adapted for applying a direct-current bias voltage to the mask, and the mask opening being dimensioned and shaped so as to generate spatially selective patterned processing on the surface of the solid sample.Type: GrantFiled: May 18, 2018Date of Patent: March 7, 2023Assignees: TOTAL SA, ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Bastien Bruneau, Erik Johnson, Pavel Bulkin, Nada Habka, Gilles Poulain, Nacib Benmammar
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Patent number: 11596945Abstract: The invention discloses a microfluidic device for the culture, selection and/or analysis of sample organisms such as nematodes, as well as for other biological entities such as for instance animal embryos. The device features reservoirs, culture chambers and smart filtering systems allowing for the selection of specific populations/specimens of sample organisms, thus permitting long-term cultures thereof as well as phenotypic/behavioural analyses. Systems and methods for using the microfluidic device are within the present disclosure as well.Type: GrantFiled: October 19, 2015Date of Patent: March 7, 2023Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Matteo Cornaglia, Martin Gijs, Daniel Migliozzi
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Patent number: 11594694Abstract: The invention relates to an optoelectronic and/or photoelectrochemical device including a conductive support layer, n-type semiconductor, a sensitizer or light-absorber layer, a hole transporting layer, a spacer layer and a back contact, wherein the n-type semiconductor is in contact with the sensitizer or light-absorber layer, the sensitizer or light-absorber layer includes a perovskite or metal halide perovskite material, the hole transporting layer is in direct contact with the sensitizer or light-absorber layer and includes an inorganic hole transporting material or inorganic p-type semiconductor, the spacer layer is between the hole transporting layer and the back contact and includes a material being different from the inorganic hole transporting material and the material of the back contact.Type: GrantFiled: May 3, 2018Date of Patent: February 28, 2023Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Neha Arora, Mohammad Ibrahim Dar, Shaik Mohammed Zakeeruddin, Michael Graetzel
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Patent number: 11591407Abstract: The present invention relates to engineered extra-cellular vesicle internalizing receptors that have the ability to enhance uptake, processing, and presentation to T-cells of tumor-associated antigens by an antigen-presenting cell. It further relates to vectors or antigen presenting cells expressing said receptors, composition and uses thereof for the prevention and/or treatment of a cancer.Type: GrantFiled: February 1, 2017Date of Patent: February 28, 2023Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPPFL)Inventors: Michele De Palma, Mario Leonardo Squadrito
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Patent number: 11583860Abstract: A device for aggregating cells includes a cavity. The cavity includes a plurality of microwells for receiving at least one cell. Each of the microwells includes a vertical sidewall and a curved bottom. The microwells are made in a hydrogel layer. Each of said microwells has a diameter and an interwell distance between one microwell and another microwell, wherein a ratio for the interwell distance to the diameter is less than or equal to 1/10.Type: GrantFiled: December 22, 2014Date of Patent: February 21, 2023Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Sylke Höhnel, Nathalie Brandenberg, Matthias Lutolf
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Patent number: 11579523Abstract: A method for manufacturing glass-based micro- and nanostructure comprising the step of dewetting a thin-film glass layer on a textured substrate to form the micro- and nanostructure from the thin-film glass layer.Type: GrantFiled: February 7, 2020Date of Patent: February 14, 2023Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Fabien Sorin, Louis Martin-Monier, Alexis Page, Tapajyoti Dasgupta
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Patent number: 11577005Abstract: The composition for bone regeneration, comprises a) a first phase (3) comprising a plurality of cross-linked hydrogel chunks (1) having a mean diameter of less than 1000 ?m and incorporating an amount of mineral particles (2); and b) a second phase (4) comprising a physiologically-compatible aqueous liquid acting as a carrier for the chunks; the chunks being embedded in the second phase (4). The mineral particles (2) have a mean diameter of less than 10 ?m and the amount of the mineral particles (2) is less than 20 weight-% of the first phase.Type: GrantFiled: September 14, 2015Date of Patent: February 14, 2023Assignee: ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)Inventors: Ulrike Kettenberger, Dominique Pioletti
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Patent number: 11576251Abstract: A reflective optical system (100) comprising at least one reflective aspheric surface (1) of focal length f0 and optical axis (Z), the surface being configured so that an incident laser beam (2) propagating along an axis (Z?) is focused along the optical axis (Z) with a FWHM ((Full Width at Half Maximum) of the intensity of the reflected beam along the optical axis (Z) being larger, preferably by a factor of at least 10, than the FWHM of the intensity of a focused beam reflected by a parabola having same focal length f0 and same optical axis (Z), receiving same beam.Type: GrantFiled: June 24, 2019Date of Patent: February 7, 2023Assignees: Ecole Polytechnique, Ecole Nationale Supérieure de Techniques Avancées, Centre National de La Recherche Scientifique, Yeda Research and Development Co. Ltd.Inventors: Cédric Thaury, Slava Smartsev
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Patent number: 11574807Abstract: The invention relates to a process for the preparation of a semiconductor material comprising at least one entirely monocrystalline semiconductor layer, said process comprising the steps of preparation of the surface of a first substrate to receive a monocrystalline silicon layer; deposition by Plasma-Enhanced Chemical Vapor Deposition (PECVD) of a layer of monocrystalline silicon by epitaxial growth with a growth rate gradient on the silicon layer monocrystalline obtained in step (i); and epitaxial growth of a monocrystalline layer of a semiconductor material on the monocrystalline silicon layer obtained in step (ii), to thus obtain a material comprising at least one entirely monocrystalline semiconductor layer. The invention also relates to a multilayer material comprising a monocrystalline layer of semiconductor material.Type: GrantFiled: November 15, 2018Date of Patent: February 7, 2023Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT PHOTOVOLTAÏQUE D'ILE DE FRANCE (IPVF), ECOLE POLYTECHNIQUE, TOTALENERGIES SE, ELECTRICITE DE FRANCEInventors: Père Roca I Cabaroccas, Wanghua Chen, Romain Cariou
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Patent number: 11542371Abstract: The present invention relates to functionalized hydrogel networks grafted with at least one moiety for use in numerous fields, from cosmetics to surgery and medicine.Type: GrantFiled: September 14, 2017Date of Patent: January 3, 2023Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Sandrine Gerber, Solene Passemard, Christine Wandrey, Leo Buhler, Philippe Morel
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Publication number: 20220409899Abstract: The present disclosure provides devices, systems, and methods for spinal cord stimulation. In some exemplary embodiments, a lead is provided. In one exemplary embodiment, the lead includes a paddle and an electrode array distributed in the paddle. The electrode array includes a first column of electrodes and a second column of electrodes. The first column of electrodes and the second column of electrodes are symmetric about the midline of the paddle. The first column of electrodes includes a first electrode, a second electrode, and a third electrode. The second column of electrodes includes a fourth electrode corresponding to the first electrode, a fifth electrode corresponding to the second electrode, and a sixth electrode corresponding to the third electrode. A vertical inter-electrode distance between the first electrode and the second electrode is larger than that between the second electrode and the third electrode.Type: ApplicationFiled: June 24, 2021Publication date: December 29, 2022Applicants: ONWARD MEDICAL B.V., ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNEInventors: Damien Ganty, Edoardo Paoles, Jocelyne Bloch, Gregoire Courtine, Leonie Asboth, Robin Demesmaeker, Henri Lorach, Jordan Squair, Tomislav Milekovic, Andreas Rowald
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Publication number: 20220405448Abstract: A computer-implemented method of machine-learning. The method comprises providing a dataset of 3D modeled objects each representing a mechanical part. Each 3D modeled object comprises a specification of a geometry of the mechanical part. The method further comprises learning a set of parameterization vectors each respective to a respective 3D modeled object of the dataset and a neural network configured to take as input a parameterization vector and to output a representation of a 3D modeled object usable in a differentiable simulation-based shape optimization. The learning comprises minimizing a loss that penalizes, for each 3D modeled object of the dataset, a disparity between the output of the neural network for an input parameterization vector respective to the 3D modeled object and a representation of the 3D modeled object. The representation of the 3D modeled object is usable in a differentiable simulation-based shape optimization.Type: ApplicationFiled: June 1, 2022Publication date: December 22, 2022Applicants: DASSAULT SYSTEMES, ECOLE POLYTECHNIQUE, CNRSInventors: Mariem MEZGHANNI, Théo BODRITO, Malika BOULKENAFED, Maks OVSJANIKOV