Patents Assigned to EPFL
  • Patent number: 12274643
    Abstract: Apparatus and methods are provided for treating diseases that produce elevated intraocular pressures, such as glaucoma, wherein the device includes a housing shell defining a cavity between a first end and a second end of the housing shell, and an elastic membrane disposed within the cavity to divide the cavity into a fluidic channel that permits a flow of fluid from the first end to the second end and a sealed cavity. The elastic membrane deforms to change the volume of the sealed cavity responsive to pressure fluctuations between the first and second ends, thereby varying the fluidic resistance of the flow of fluid through the fluidic channel.
    Type: Grant
    Filed: May 23, 2024
    Date of Patent: April 15, 2025
    Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)
    Inventors: Nikolaos Stergiopulos, Constantinos Stergiopulos
  • Publication number: 20250111153
    Abstract: A computer-implemented method for translating an input text element into a sequence of characters comprising a set of graphical symbols. The method comprises the steps of: selecting (12) one or more words out of the input text element as pre-processed or unprocessed to be translated to obtain a word selection; marking (12) the word selection; translating (13) the word selection identified by the marking into at least a set of graphical symbols by using an artificial intelligence language model considering the context of the word selection in the pre-processed text element to dynamically translate the word selection based on the context to obtain a translated word selection, wherein a given word in the word selection is translated into a sequence of at least two graphical symbols; and displaying (15) the input text element as translated to a user, wherein the input text element as translated comprises the translated word selection.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 3, 2025
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Robert WEST, Lars KLEIN, Roland AYDIN
  • Patent number: 12265359
    Abstract: A mechanical isotropic harmonic oscillator including a frame, a mass configured to oscillate, and three flexure rods, each flexure rod connecting the mass to the frame.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: April 1, 2025
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Simon Henein, Lennart Rubbert, Ilan Vardi
  • Publication number: 20250099922
    Abstract: The present invention relates to a polyaromatic polymer that comprises multifunctional aromatic moieties MA, cationic groups CG and bifunctional aromatic moieties BA, wherein one or more CG and one or more BA form a linear unit L, and MA is connected to 3 to 6 linear units L. MA, CG and BA are defined as described in the specification. Furthermore, the present invention relates to a neutral precursor of the polyaromatic polymer and to an anion exchange membrane that comprises a polyaromatic polymer according to the invention.
    Type: Application
    Filed: October 13, 2022
    Publication date: March 27, 2025
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Xingyu WU, Xile HU
  • Publication number: 20250070773
    Abstract: The invention relates to a gate unit (22) for controlling a gate commutated thyristor (21), comprising: —a voltage selector (26) for selectively applying a high supply potential (Vpos), a middle supply potential (Vmid), and a low supply potential (Vneg); —a nonlinear inductor (27) serially coupled between the output of the voltage selector (26); —a gate control unit (23) configured to control the voltage selector (26) to control switching of the gate commutated thyristor (21) in its turn-on state comprising a turn-on pulse generation, a positive-gate-voltage backporch operation, a negative-gate-voltage backporch operation and a retrigger pulse generation; wherein the nonlinear inductor (27) has a nonlinearity to have a high inductance during any of the backporch operations and to have a low inductance during the turn-on pulse generation and retrigger pulse generation.
    Type: Application
    Filed: October 26, 2022
    Publication date: February 27, 2025
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Jakub KUCKA, Drazen DUJIC
  • Publication number: 20250067853
    Abstract: A method and a setup for light detection and ranging are disclosed. The setup is configured to carry out the following method: generating signal radiation at multiple signal frequencies with an optical signal source, wherein the signal radiation exhibits random signal modulations preferably at each of the multiple signal frequencies, splitting the signal radiation into a target radiation part and a reference radiation part, directing the target radiation part towards a target, detecting a target signal, wherein the target signal is associated with a reflected portion of the target radiation part being reflected from the target, detecting a reference signal, wherein the reference signal is associated with the reference radiation part, and deriving at least one ranging information parameter from the target signal and the reference signal.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 27, 2025
    Applicant: Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Anton LUKASHCHUK, Johann RIEMENSBERGER, Tobias KIPPENBERG
  • Patent number: 12230490
    Abstract: A device for fragmenting ions by collision induced dissociation, the device intended to be used together with a planar ion mobility apparatus, the device including a first conductive grid having a plurality of first openings, the first conductive grid configured for electric interconnection to a first electric potential, and a second conductive grid having a plurality of second openings, the second conductive grid configured for electric interconnection to a second electric potential, the first and second conductive grids being electrically insulated from each other.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: February 18, 2025
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Stephan Warnke, Thomas Rizzo, Ahmed Ben Faleh
  • Patent number: 12217349
    Abstract: A computer-implemented inverse rendering method comprising: computing an adjoint image by differentiating an objective function that evaluates the quality of a rendered image, image elements of the adjoint image encoding the sensitivity of spatially corresponding image elements of the rendered image with respect to the objective function; sampling the adjoint image at a respective sample position to determine a respective adjoint radiance value associated with the respective sample position; emitting the respective adjoint radiance value into a scene model characterised by scene parameters; determining an interaction location of a respective incident adjoint radiance value with a surface and/or volume of the scene model; determining a respective incident radiance value or an approximation thereof at the interaction location; and updating a scene parameter gradient.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: February 4, 2025
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Wenzel Jakob, Merlin Nimier-David
  • Patent number: 12206758
    Abstract: A system for privacy-preserving distributed training of a global model on distributed datasets has a plurality of data providers being communicatively coupled. Each data provider has a local model and a local training dataset for training the local model using an iterative training algorithm. Further it has a portion of a cryptographic distributed secret key and a corresponding collective cryptographic public key of a multiparty fully homomorphic encryption scheme. All models are encrypted with the collective public key. Each data provider trains its local model using the respective local training dataset, and combines the local model with the current global model into a current local model. A data provider homomorphically combines current local models into a combined model, and updates the current global model based on the combined model. The updated global model is provided to at least a subset of the other data providers.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: January 21, 2025
    Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)
    Inventors: David Froelicher, Juan Ramon Troncoso-Pastoriza, Apostolos Pyrgelis, Sinem Sav, Joao Gomes De Sa E Sousa, Jean-Pierre Hubaux, Jean-Philippe Bossuat
  • Publication number: 20250020785
    Abstract: A photonic assembly, a laser setup having the photonic assembly and a method for performing frequency-modulated continuous-wave light detection and ranging using the laser setup are disclosed. The photonic assembly has an active photonic chip, a photonic modulator chip, and a tuning arrangement having a modulation element having a thickness of 10 micrometers or less. The active photonic chip and the photonic modulator chip are optically coupled such, that injection radiation at an optical feedback wavelength is generated, which defines at least one optical lasing wavelength at which the optical radiation is emitted by the active photonic chip. The modulation element is arranged such, that an actuation of the modulation element tunes the optical feedback wavelength via the Pockels effect, such, that a tuning of the optical feedback wavelength entails a tuning of the optical lasing wavelength.
    Type: Application
    Filed: November 23, 2021
    Publication date: January 16, 2025
    Applicant: Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Tobias KIPPENBERG, Grigorii LIKHACHEV, Johann RIEMENSBERGER, Viacheslav SNIGIREV
  • Patent number: 12194475
    Abstract: ESP particle collector (1) for collecting particles in a particle containing gas stream, comprising an inlet section (4), a collector section (6), and an electrode arrangement (8), the inlet section comprising a flow tube (10) defining a gas flow channel (12) therein bounded by a guide wall (24) extending between an entry end (14) and a collector end (16) that serves as an inlet to the collector section (6), the entry end comprising an inlet (28) for the particle gas stream and a sheath flow inlet portion (26) for generating a sheath flow around the particle gas stream, the collector section comprising a housing (18) coupled to the flow tube, and a collector plate (20) mounted therein having a particle collection surface (23). The ESP particle collector is configured to allow optical analysis of the collector plate particle collection surface to measure particles collected thereon.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: January 14, 2025
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Nikunj Dudani, Satoshi Takahama
  • Patent number: 12190452
    Abstract: A method for enforcing smoothness constraints on surface meshes produced by a Graph Convolutional Neural Network (GCNN) including the steps of reading image data from a memory, the image data including two-dimensional image data representing a three-dimensional object or a three-dimensional image stack of the three-dimensional object, performing a GCNN mesh deformation step on the image data to obtain an approximation of a surface of the three-dimensional object, the surface represented by triangulated surface meshes, at least some vertices of the triangulated surface meshes having a different number of neighboring vertices compared to other vertices in a same triangulated surface mesh, and performing a deep active surface model (DASM) transformation step on the triangulated surface meshes to obtain a corrected representation of the surface of three-dimensional object to improve smoothness of the surface.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: January 7, 2025
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Udaranga Pamuditha Wickramasinghe, Pascal Fua
  • Patent number: 12181795
    Abstract: A method for manufacturing a scintillation detector structure including the steps of forming a plurality of first structures into a surface of a substrate to form a patterned substrate, filling the plurality of first structures and covering the surface of the substrate with a polymeric material, hardening the polymeric material and first removing the hardened polymeric material from the substrate to obtain a polymeric mold with a patterned surface having a plurality of second structures, performing a surface cleaning treatment and a silanization of the patterned surface of the polymeric mold, filling the plurality of second structures and covering the patterned surface of the polymeric mold with a moldable scintillation material, polymerizing the scintillation material while exerting a pressure on the scintillation material, and second removing the polymerized scintillation material from the plurality of second structures of the polymeric mold to obtain scintillation detector active structures.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: December 31, 2024
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Veronica Leccese, Michele Caldara, Marcello Pagano, Arnaud Bertsch, Luca Müller, Alessandro Mapelli, Fabrizio Carbone
  • Publication number: 20240429627
    Abstract: A terahertz device for detecting or emitting or for both detecting and emitting electromagnetic waves in the terahertz frequency range. The terahertz device comprises: a first waveguide branch and a second waveguide branch, the first and second waveguide branches being configured to allow optical signals to propagate through them, the first and second waveguide branches being nonlinear dielectric elements with a thickness of at most 500 micrometres; and an antenna arrangement comprising a set of antennas for capturing and/or emitting electromagnetic waves in the terahertz frequency range, the antennas being placed along at least one of the waveguide branches in an immediate vicinity of the respective waveguide branch and/or around the respective waveguide branch to at least partially enclose the respective waveguide branch in a respective antenna gap of the respective antenna.
    Type: Application
    Filed: June 23, 2023
    Publication date: December 26, 2024
    Applicants: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), ETH ZURICH, PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Ileana-Cristina BENEA-CHELMUS, Marko LONCAR, Jerome FAIST, Alessandro TOMASINO, Amirhassan SHAMS-ANSARI, Alexa HERTER, Yazan LAMPERT ALMAHMOUD
  • Patent number: 12174182
    Abstract: The present invention relates to a plasmonic biosensor system. The system includes a nano-hole array device comprising at least one nano-hole array (NHA) including at least one or a plurality of nano holes (NH), an image sensor (A3) for capturing light provided by a light source (A1) and transmitted through the nano-hole array (NHA), and at least one or a plurality of nano-particles (NP) configured to be received by the nano-holes (NH) of the nano-hole array (NHA).
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: December 24, 2024
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Alexander Belushkin, Filiz Yesilköy, Hatice Yanik Altug
  • Patent number: 12162995
    Abstract: 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: Grant
    Filed: November 21, 2022
    Date of Patent: December 10, 2024
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Sandrine Gerber, Solene Passemard, Christine Wandrey, Leo Buhler, Philippe Morel
  • Patent number: 12151243
    Abstract: A crossflow microfluidic particle concentrator including a main channel having an inlet and an outlet a crossflow outlet operably connectable with pressure means and/or flow control means, a plurality of crossflow channels fluidically connecting the crossflow outlet with the main channel a filtering element including a particle flow channel within the main channel, and a row of crossflow pillars disposed between the filtering element and the plurality of crossflow channels.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: November 26, 2024
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventor: Ludovic Serex
  • Publication number: 20240369724
    Abstract: The present invention relates to an integrated imaging system. The integrated imaging system includes an array of analog photomultiplier elements. The integrated imaging system includes a plurality of submodules, each submodule having a number of the photomultiplier elements. The integrated imaging system includes a plurality of time-to-digital converters each associated and coupled with one of the submodules. The plurality of time-to-digital converters are configured to provide a respective timing information.
    Type: Application
    Filed: July 27, 2021
    Publication date: November 7, 2024
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Andrada Alexandra Muntean, Edoardo Charbon
  • Patent number: 12114917
    Abstract: The invention provides for a device (100) for use in electrical nerve modulation in a subject, characterized in that it comprises a rotational and linear actuator (110); a tubular element (101) having a proximal end connected to the actuator (110) and a distal end; a flexible shaft (102) coaxially disposed within the tubular element (101), comprising a proximal end operably connected to the actuator (110) and a distal end, and adapted to be slid along the tubular element (101); a conformable support (103) comprising a proximal end operably connected to the tubular element's (101) distal end, and a distal end operably connected to the flexible shaft's (102) distal end, having a portion of its length helically wrapped about a distal portion of the flexible shaft (102) so to define a pitch (500) and a radius (400); and a plurality of electrodes (104) operably disposed along the helically configured portion of the conformable support (103), and electrically connectable to a generator (200), adapted to contact the
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: October 15, 2024
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Guillaume Petitpierre, Philippe Renaud
  • Patent number: 12109330
    Abstract: The invention relates to a scaffold material comprising a plurality of particles of a highly porous polymeric material, characterized in that said scaffold material becomes a shapeable paste once hydrated. The specific features of the particle material impart a special behavior to the scaffold, which can be easily shaped and even highly reversibly compressed, so that in certain aspects it can, if needed, be injected, said capacity to be shaped being maintained over a high range of hydration conditions. A particular aspect of the invention relates, therefore, to the use of such scaffold material for the manufacturing of shapeable body implants, such as breast implants, to the shapeable body implants themselves as well as to non-invasive methods for using thereof in creating or reconstructing a three-dimensional volume in a subject's body part.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: October 8, 2024
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Amelie Barbara Hildegarde Beduer, Thomas Braschler, Philippe Renaud, Giorgio Pietramaggiori, Saja Scherer