Patents Assigned to Ecole Polytechnique Federales de Lausanne
  • Patent number: 11747228
    Abstract: Device and method for measuring contact force exerted by an object on a probe comprising a lever and said probe for contacting the object is provided. The lever is pivotably coupled to a body by a coupling module. The device comprising a fixed frame coupled to the body. The body is designed to be moved with respect to the object to put the probe in contact with the object to create force pivoting said lever with respect to the body around a pivot axis. The device comprising a sensor for measuring displacement of the lever with respect to the body upon pivoting. The coupling module comprises control stiffness module, so that when the probe contacts the object, the displacement of the lever is proportional to the force exerted by the probe on the object. Such control stiffness module is tunable so that accuracy and sensitivity of measured force is controlled.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 5, 2023
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Mohammad Hussein Kahrobaiyan, Charles Baur, Simon Henein, Mohamed Zanaty
  • Patent number: 11748254
    Abstract: Data transformer apparatus comprising a dispatcher module, a reader module, a converter module and a writer module; the dispatcher module is configured to receive a data transformation request including a first and a second information items; the reader module is configured to retrieve data to be transformed, according to said first information item; obtain the type attribute of the data to be transformed, based on said first information item; send the data to be transformed and the type attribute to the converter module; the converter module is configured to select transformation instructions based on said type attribute; execute, on the data to be transformed, the selected transformation instructions, thereby obtaining transformed data; send the transformed data to the writer module; the writer module is configured to; write the transformed data in an output buffer according to said second information item.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: September 5, 2023
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Arash Pourhabibi Zarandi, Siddharth Gupta, Hussein Kassir, Mark Sutherland, Zilu Tian, Mario Paulo Drumond Lages De Oliveira, Babak Falsafi, Christoph Koch
  • Patent number: 11735478
    Abstract: A method for manufacturing vias in a silicon wafer, the silicon wafer having a <110> crystal orientation, and having a <111> plane that is perpendicular to a surface of the wafer, tilted by 35.26°, the method comprising the steps of providing a mask having a rhomboidal-shaped opening onto a surface of the silicon wafer, such that edges of the rhomboidal-shaped opening line up with a <111> plane of a crystalline structure of the silicon wafer, etching a hole in the silicon wafer at the rhomboidal-shaped opening, and polishing the hole after the etching by a anisotropic etching.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: August 22, 2023
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Simone Frasca, Edoardo Charbon, Sandro Carrara, Rebecca Leghziel
  • Patent number: 11724006
    Abstract: A method of producing a cryogel-based multicompartment 3D scaffold is herein disclosed. The method comprises the steps of: a) providing a first frozen polymeric layer on a refrigerated support kept at subzero temperature; b) providing subsequent polymeric layers to obtain a stack of polymeric layers by possibly modulating the subzero temperature of the refrigerated support; c) optionally incubating the final polymeric structure at subzero temperature; and d) placing the produced cryogel at a temperature above 0° C., the method being characterized in that each subsequent layer i) is deposited on the previous one after freezing of this latter; ii) is deposited on the previous one before the complete polymerization of this latter; and iii) is deposited with a temperature higher than the freezing temperature of the previously deposited layer. Cryogel scaffolds obtained from the method of the invention are also disclosed.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 15, 2023
    Assignee: École Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Amélie Barbara Hildegarde Béduer, Thomas Braschler, Philippe Renaud
  • Patent number: 11728081
    Abstract: A planar actuator device, including a base plate including a first, second, and third pair of planar coils, each pair of planar coils having an inner coil and an outer coil, each pair of planar coils arranged along a first, second, and third linear motion axis, respectively, the first, second, and third linear motion axis arranged in a star configuration, and an actuation mechanism including a first, second, and third planar legs and a centerpiece, the first, second and third planar legs pivotably connected to the centerpiece, the planar legs including a first, second, and third sliding element and a first, second, and third middle section, respectively, a sliding element and middle section of a respective leg pivotably connected to each other, each sliding element including a permanent magnet.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: August 15, 2023
    Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)
    Inventors: Marco Salerno, Amir Firouzeh, Jamie Paik, Stefano Mintchev
  • Patent number: 11714232
    Abstract: The present invention concerns an optical coupling device including at least one supporting layer comprising a first support wall and a second support wall. The at least one supporting layer comprises at least one bridging waveguide for coupling electromagnetic radiation to and from an optical resonator or optical device, the at least one bridging waveguide extending between the first support wall and the second support wall.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 1, 2023
    Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)
    Inventors: Tobias Kippenberg, John Jost, Miles Anderson, Junqiu Liu
  • Patent number: 11712371
    Abstract: An ocular drainage system is provided for treating diseases that produce elevated intraocular pressures, such as glaucoma, wherein the system includes an implantable device and an external control unit, the implantable device includes a non-invasively adjustable valve featuring at least one deformable tube and a disk rotatably mounted within a housing, such that rotation of the disk using the external control unit causes the disk to apply a selected amount of compression to the deformable tube, thereby adjusting the fluidic resistance of the deformable tube and regulating the intraocular pressure.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: August 1, 2023
    Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)
    Inventors: Stephane Bigler, Nikolaos Stergiopulos
  • Publication number: 20230203374
    Abstract: A method for producing a carbonate-containing species-rich, nitrogen-containing species-free solution from a urea-rich solution is proposed.
    Type: Application
    Filed: May 19, 2020
    Publication date: June 29, 2023
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Dimitrios TERZIS, Lyesse LALOUI
  • Publication number: 20230206538
    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: Application
    Filed: May 7, 2020
    Publication date: June 29, 2023
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Wenzel JAKOB, Merlin NIMIER-DAVID
  • Patent number: 11680035
    Abstract: The organic small molecule 4,4?,4?,4??-(5,5-dimethoxycyclopenta-1,3-diene-1,2,3,4-tetrayl)tetrakis(N,N-bis(4-methoxyhenyl)aniline (CPDA 1), shows electrochemical properties very close to spiro-OMeTAD indicating a high compatibility with PSC systems for its use as a hole transport material (HTM). The implementation of the cyclopentadiene dimethyl acetale core helps to red shift the absorption onset of the films as well as provide a flexible spatial configuration of the molecule, which is essential for optimum film forming properties. Transient and steady state emission analysis as well as hole mobility measurements indicate that the new HTM allows a better charge extraction, transport and separation than the spiro-OMeTAD reference compound. PSCs based on the new CPDA 1 show a PCE close to 23% with lower hysteresis than its analogue. Stability studies performed under ambient, heated and humid conditions all showed that CPDA 1 is over-performing spiro-OMeTAD.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: June 20, 2023
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Yuhang Liu, Shaik Mohammed Zakeeruddin, Michael Graetzel, Michael Bauer, Peter Bäuerle
  • Patent number: 11666638
    Abstract: Glycotargeting therapeutics are useful in the treatment of transplant rejection, autoimmune disease, food allergy, and immune response against a therapeutic agent.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 6, 2023
    Assignees: Ecole Polytechnique Federale de Lausanne (EPFL), Anokion SA
    Inventors: Jeffrey A. Hubbell, Stephane Kontos, Kristen Marie Lorentz, David Scott Wilson, Shuning Gai
  • Publication number: 20230157560
    Abstract: 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: Application
    Filed: January 4, 2023
    Publication date: May 25, 2023
    Applicant: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)
    Inventors: Assim Boukhayma, Antonino Caizzone, Christian Enz
  • Publication number: 20230157578
    Abstract: An analysis method for analyzing pressure exerted by a body portion and/or of a human prosthesis includes: sampling data generated by the body portion and/or the prosthesis during a threshold calibration period at a sampling frequency in a condition of use thereby obtaining an array of sampled data of at least one sensing unit; providing at least one threshold value of the sampled data for the condition of use and storing the least one threshold value in a memory unit; comparing at the sampling frequency the sampled data with the at least one threshold value to obtain calibrated data, and storing the calibrated data in the memory unit and/or sending the calibrated data to a computing device if the calibrated data is greater than the at least one threshold value. A sensing device for sensing the pressure exerted by a body portion and/or the human prosthesis is also provided.
    Type: Application
    Filed: April 21, 2020
    Publication date: May 25, 2023
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE EPFL-TTO
    Inventors: Andrea CREMA, Fiorenzo ARTONI, Silvestro MICERA
  • Patent number: 11654609
    Abstract: The present disclosure relates to how to engineer reversible elasticity in thin films and/or layers and/or substrates, using a repeated Y-shaped motif, which is cut out through the film and/or layer and/or substrate. As an example, using a 75 ?m thick polyimide (PI) foil, macroscopic dog-bone shaped structures with a range of geometrical parameters of the Y shape have been prepared according to an embodiment of the present disclosure. The tensile strain response of the film at its point of fracture was then recorded. The structures were also confirmed using finite element modeling. Upon stretching, the PI ligaments locally deflect out of plane, allowing the foil to macroscopically stretch.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 23, 2023
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Nicolas Vachicouras, Christina Myra Tringides, Stephanie P. Lacour
  • Patent number: 11654188
    Abstract: Glycotargeting therapeutics are useful in the treatment of transplant rejection, autoimmune disease, food allergy, and immune response against a therapeutic agent.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 23, 2023
    Assignees: Ecole Polytechnique Federale de Lausanne (EPFL), Anokion, SA
    Inventors: Jeffrey A. Hubbell, David Scott Wilson, Stephane Kontos, Kristen Marie Lorentz, Shuning Gai
  • Patent number: 11642672
    Abstract: Microfluidic network device (2) configured to supply reagents to a biological tissue sampling device (1), comprising a plurality of microfluidic inlet channels (12) connected to respective sources of said reagents, at least one common outlet channel (22), and a plurality of valves (36) interconnecting an outlet end (14) of each of said plurality of inlet channels to said at least one common outlet channel.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 9, 2023
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Diego Gabriel Dupouy, Ata Tuna Ciftlik, Martin Gijs, Pierre Joris
  • Patent number: 11642271
    Abstract: In one embodiment, the exoskeleton structure is fastened to the body of the user by a brace and at the foot level. The exoskeleton includes at least one set of three joints corresponding to the hip abduction/adduction, the hip flexion/extension and the knee flexion/extension, wherein the architecture of the exoskeleton is compatible with a set of different removable, adaptable and backdrivable actuation units dedicated to each joints and remotely located around the trunk of the user to decrease inertia and mass on the distal segments, wherein each joint can be modularily let free, constrained by a visco-elastic mechanism or actuated by one corresponding actuation unit.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 9, 2023
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Amalric Ortlieb, Mohamed Bouri
  • Patent number: 11639830
    Abstract: The invention provides in one embodiment a heat exchanger module (1) comprising a) a flexible support (100); b) at least one tubular member (200) having its main axis substantially parallel with the plane of the flexible support (100); c) a conductive flexible matrix (300) embedding the at least one tubular member (200); and d) a flexible case (400) enwrapping the flexible support (100), the at least one tubular member (200) and the conductive flexible matrix (300). A coating for a built environment comprising a plurality of heat exchanger modules (1) can be implemented, as well as a system further including pumping means (600). The invention also foresees a method for providing heat exchange processes between the heat exchanger module (1), the coating or the system of the invention and a built environment.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: May 2, 2023
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Lyesse Laloui, Alessandro Rotta Loria
  • Patent number: 11639324
    Abstract: The present invention relates to a method for preparing monomers via depolymerisation from lignocellulose-containing biomass.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 2, 2023
    Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)
    Inventors: Jeremy Scott Luterbacher, Li Shuai
  • Patent number: 11629175
    Abstract: 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: Grant
    Filed: April 29, 2019
    Date of Patent: April 18, 2023
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Hilal A. Lashuel, Nadine Ait-Bouziad