Patents Assigned to RWTH Aachen
  • Patent number: 11454258
    Abstract: The invention relates to a fluid-driven drive having a movable working surface and a volume-variable cavity, further having an unstable element, wherein given a movement of the working surface in a first movement direction, the unstable element can initially be moved at least in a section with an increased expenditure of force out to an unstable point, wherein when going past the unstable point in the first movement direction, in addition to the force that is provided by fluid pressure, a force exerted by the unstable element is also available in the direction of the first movement direction, wherein given a subsequent movement of the working surface in a second movement direction opposite to the first movement direction, the unstable element can be initially moved with an increased expenditure of force out to an unstable point, wherein when passing the unstable point in the second movement direction, a lower expenditure of force is required for movement at least sectionally.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 27, 2022
    Assignee: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventor: Olivier Reinertz
  • Publication number: 20220293846
    Abstract: An electronic component (10, 110) is designed as a semiconductor or with a semiconductor-like structure for moving a quantum dot (68, 168) over a distance. The electronic component (10, 110) comprises a substrate (32, 132) having a two-dimensional electron gas or electron hole gas. A gate electrode assembly (16, 18, 20, 116, 118, 120) having gate electrodes (38, 40, 42, 44, 138, 140, 142, 144) is arranged on a surface (31, 131) of the electronic component (10, 110). The gate electrode assembly (16, 18, 20, 116, 118, 120) produces a potential well (66, 166) in the substrate (32, 132). Electrical terminals for connecting the gate electrode assembly (16, 18, 20, 116, 118, 120) to voltage sources are provided for this purpose. The disclosure further relates to a method for such an electronic component (10, 110).
    Type: Application
    Filed: September 1, 2020
    Publication date: September 15, 2022
    Applicants: Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Forschungszentrum Jülich GmbH
    Inventors: Inga SEIDLER, Hendrik BLUHM, Lars SCHREIBER, Matthias KÜNNE
  • Publication number: 20220215878
    Abstract: A phase-change memory (10) for the non-volatile storage of binary contents stores the binary contents electrically and/or optically in a non-volatile manner by locally switching a material (18) between an amorphous and a crystalline phase. The state with respect to the electrical conductivity of the material (18) and/or the reflection properties of the material (18) determines the information content of the phase-change memory (10). A method for non-volatile storage of binary contents in a phase-change memory (10), which stores the binary contents electrically and/or optically in a non-volatile manner by locally switching a material (18) between an amorphous and a crystalline phase, whereby the state with respect to the electrical conductivity of the material (18) and/or the reflection properties of the material (18) determines the information content of the phase-change memory (10).
    Type: Application
    Filed: April 21, 2020
    Publication date: July 7, 2022
    Applicant: Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
    Inventors: Shuai WEI, Matthias WUTTIG, Yudong CHENG, Julian PRIES, Xiaoling LU
  • Patent number: 11291754
    Abstract: A system for the extracorporeal elimination of carbon monoxide, includes at least one pump and a gas exchange chamber, wherein the at least one pump can be connected to the blood circulatory system of a person by way of a first tube section connectable to a cannula and is connected to a gas exchange chamber via a second tube section, wherein the system is configured to transfer blood, via the first tube section, from the blood circulatory system of the person by way of at least one pump into the gas exchange chamber, and to return the blood from the gas exchange chamber to the blood circulatory system of the person via the same first tube section.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: April 5, 2022
    Assignee: RHEINISCH-WESTFAELISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Jutta Arens, Ralf Borchardt, Peter Christian Schlanstein, Thomas Schmitz-Rode, Lotte Schraven, Georg Wagner, Ulrich Steinseifer
  • Publication number: 20220011373
    Abstract: An exciter unit, a battery system including the exciter unit, and a method for determining a battery state of at least one battery cell. The method includes: a. applying a current-exciting signal; b. recording an impedance spectrum of the battery cell; c. determining an evaluation variable on the basis of a measured impedance spectrum. At least one of the amplitude, frequency and relative phase difference of at least one component of the current-exciting signal is modified as a function of the first measured response signal such that a measuring error is minimized, a further measured response signal is determined and evaluated, the value evaluated is used as an evaluation variable, and the battery state variables of the battery cell are determined on the basis of a comparison of at least one diagnostic variable with at least one reference value and/or with at least one further diagnostic variable.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 13, 2022
    Applicant: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Hendrik ZAPPEN, Alexander GITIS
  • Publication number: 20220009900
    Abstract: The present invention relates to the synthesis of N-trifluoromethylcarbonyl compounds starting from isothiocyanates, which can be converted into N-trifluoromethylcarbamoyl fluorides or similar compounds, which later on can be derivatized further to amides, ureas, carbamates, thiocarbamates and selenocarbamates.
    Type: Application
    Filed: November 19, 2019
    Publication date: January 13, 2022
    Applicant: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Franziska SCHOENEBECK, Thomas SCATTOLIN
  • Publication number: 20210251740
    Abstract: The invention relates to a method for producing a stent graft. The method comprises providing a graft made of a first polymer-based material and applying a stent structure comprising a plurality of struts made of a second polymer-based material onto the graft by means of an additive manufacturing method. The invention further relates to a stent graft produced by means of the method.
    Type: Application
    Filed: June 25, 2019
    Publication date: August 19, 2021
    Applicant: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Alexander LÖWEN, Valentine GESCHÉ, Stefan JOCKENHÖVEL, Thomas GRIES
  • Publication number: 20210194070
    Abstract: A diagnostic device for critical changes in batteries having multi-layered structures, a battery system including the diagnostic device, and a method of use thereof. The device determines critical changes relative to a target state in battery cells having a plurality of layers frictionally connected to each other, at least one receiver and, optionally, a transmitter. The receiver receives acoustic plate waves and/or acoustic torsion waves and transmits a corresponding signal to an evaluating unit that evaluates parameters characteristic for an actual state of the battery cell, and compares them to at least one previously defined threshold. Exceeding or falling short of the threshold is evaluated as identification of battery cells having a critical change to the physical properties thereof. A transmitter of the diagnostic device is suitable for exciting the acoustic plate waves or torsion waves in the battery cell having a propagation direction along the layers.
    Type: Application
    Filed: March 27, 2018
    Publication date: June 24, 2021
    Applicant: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventor: Alexander GITIS
  • Patent number: 11007148
    Abstract: The present invention provides an amphiphilic block copolymer for drug delivery and a controlled release system comprising the same copolymer. The copolymer comprises at least one hydrophilic block and at least one hydrophobic block, wherein the hydrophobic block is selected from the group consisting of acrylates, methacrylates, acrylamides, methacrylamides, vinylethers and their aromatic derivatives, wherein at least one hydrophobic block contains an aryl group, which is bound to the hydrophobic block with a degradable linker. The controlled release system of the invention shows high stability and high drug retention when administered in vivo enabling accumulation and drug release at the site of action.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 18, 2021
    Assignee: Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
    Inventors: Wilhelmus Everhardus Hennink, Yang Shi, Cornelus Franciscus van Nostrum
  • Patent number: 10998800
    Abstract: The invention relates to a method of manufacturing a rotor for an electric machine, wherein the rotor is composed of at least one electric sheet wherein at least one electric sheet is thermally treated regionally to directly modify its magnetic permeability in the treated region.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 4, 2021
    Assignee: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Tobias Lange, Rik W. De Doncker, Mareike Schenk, Stefan Koschik
  • Patent number: 10988871
    Abstract: A three-dimensional knitted fabric with a large-diameter circular knitting machine is knitted with a plurality of stitches that form a plurality of stitch courses oriented in each case in a stitch-course direction of the knitted fabric and a plurality of stitch wales oriented in each case in a stitch-wale direction of the knitted fabric, wherein at least one of the stitches is in the form of at least one corrugation-forming stitch, which extends in the stitch-wale direction over a plurality of stitch courses and binds at least one corrugation in the knitted fabric.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: April 27, 2021
    Assignee: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Kristina Fuhrmann, Thomas Gries, Isabel Schrepfer, Richard Riedlinger
  • Patent number: 10869750
    Abstract: AN endovascular stent graft including a hydrogel capable of retarded swelling when coming into contact with blood upon implantation in a patient is provided. Methods for the treatment of aneurysms and the prevention of ischemic neurological damage, in particular spinal cord damage, in patients receiving aneurysm repair procedures, using said endovascular stent grafts is also provided.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: December 22, 2020
    Assignee: Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
    Inventors: Andreas Greiner, Stefan Jockenhövel, Andrij Pich, Larissa Hussmann, Valentine Gesché
  • Patent number: 10873254
    Abstract: An electrical circuit comprising an n-port m-phase active bridge converter with n?2 and m?3, where each port can be operated as an input or an output port, wherein each of the n ports has m phase legs with multiple active switches with parallel connected snubber or resonant capacitors, whereby the ports can convert a DC-voltage into an AC voltage and vice versa, whereby the ports are connected via a m-phase transformer or over m separate transformers each connected to each of the m phase legs of each of the m ports to transfer power between the ports, wherein an auxiliary circuit is connected to a star point of the transformers to feedback a fraction of a transformer input voltage and energy into a DC mid-point capacitor of a DC-link of at least one of the n-port m-phase active bridge converters to charge the DC mid-point capacitor.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 22, 2020
    Assignee: Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
    Inventor: Rik W. De Doncker
  • Patent number: 10829791
    Abstract: The present invention relates to a method of producing itaconic acid. Further the present invention relates to nucleic acids encoding an aconitate-delta-isomerase (ADI) and trans-aconitate decarboxylase (TAD) and uses of such nucleic acids. Provided is additionally a recombinant host cell engineered to overexpress nucleic acids of the present invention. Furthermore an expression cassette and a vector are provided which include the respective nucleic acid.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 10, 2020
    Assignee: RHEINISCH-WESTFAELISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Michael Boelker, Wolfgang Buckel, Sandra Hartmann, Lars M. Blank, Nick Wierckx, Elena Geiser
  • Patent number: 10765521
    Abstract: An artificial cartilage is provided whereby a fixed negative charged hydrogel has been infused within a restrictive swelling network, which limits and restricts the thickness of the artificial cartilage. At least 60% of the volume of the artificial cartilage is composed of the restricted and swollen hydrogel. The restrictive swelling network restricts the hydrogel to swell not more than 10% with respect to its maximum swelling capacity, i.e. a swelling capacity to swell 10-fold more is retained. The hydrogel within the restrictive swelling network has an equilibrium stiffness between 0.5 and 2 MPa to resist external loads applied to the top surface layer or the bottom surface layer of the artificial cartilage. The hydrogel has a fixed negative charge density of ?0.17 to ?0.23 mEg/ml and is capable of swelling between 2-15 times compared to the volume of the hydrogel without being restricted.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: September 8, 2020
    Assignees: Technische Universiteit Eindhoven, RWTH Aachen
    Inventors: Corrinus Cornelis van Donkelaar, Keita Ito, Tim Bolle
  • Publication number: 20200248265
    Abstract: A method of diagnosing a disease associated with a DNA repeat sequence is disclosed. The method comprises: (a) determining the number of repeats of a DNA sequence in DNA molecules of a sample of the subject; and (b) determining the CpG methylation status of the DNA molecules, wherein the number of repeats of the DNA sequence and the CpG methylation status of the DNA molecules is indicative of the disease.
    Type: Application
    Filed: April 15, 2020
    Publication date: August 6, 2020
    Applicants: Ramot at Tel-Aviv University Ltd., Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
    Inventors: Yuval EBENSTEIN, Elmar WEINHOLD, Assaf GRUNWALD, Tslil GABRIELI
  • Publication number: 20200208184
    Abstract: A method of producing 5-ketofructose using an acetic acid bacterium which is genetically modified to express a fructose dehydrogenase as well as to microorganisms which can be used in said method.
    Type: Application
    Filed: June 13, 2018
    Publication date: July 2, 2020
    Applicants: RWTH Aachen, Forschungszentrum Jülich GmbH, Rheinische Friedrich-Wilhelms-Universität Bonn
    Inventors: Elena Herweg, Jochen Büchs, Michael Bott, Ines Kiefler, Uwe Deppenmeier, Konrad Kosciow, Anna Siemen
  • Patent number: 10608522
    Abstract: An electrical circuit comprising an n-port m-phase active bridge converter with n?2 and m?1, where each port can be operated as an input or an output port, wherein each of the n ports has m phase legs with multiple active switches with parallel connected snubber or resonant capacitors, whereby the n ports can convert a DC-voltage into an AC voltage, the n ports connected via an m-phase transformer or over m separate transformers each connected to each of the m phase legs of each of the n ports to transfer power between the ports, wherein an auxiliary circuit is connected to the transformers to convert a part of a transformer input voltage and energy via an auxiliary voltage source into a DC mid-point capacitor of a DC-link of at least one of the n-port m-phase active bridge converters to recharge the DC mid-point capacitor.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 31, 2020
    Assignee: Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
    Inventors: Rik W. De Doncker, Johannes Voss
  • Patent number: 10584036
    Abstract: A method for producing an inorganic silica gel fiber or aerogel fiber, comprising the following steps: a) extrusion of a gel, in particular a hydrogel or alcogel, by means of a spinneret directly into a coagulation bath to form at least one filament, b) stretching of the filament in the coagulation bath, c) regeneration of the filament by extraction from the coagulation bath, and d) supercritical drying or freeze drying in order to convert the filament into a silica fiber, in particular an aerogel fiber.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: March 10, 2020
    Assignee: Rheinisch-Westfälische Technische Hochschulte (RWTH) Aachen
    Inventors: Davide Pico, Björn Schulz, Alexander Lüking, Thomas Gries
  • Patent number: 10500971
    Abstract: A circuit assembly for linking different electrical voltage levels in a motor vehicle, comprising: an electric machine containing induction coils in a star circuit connection with a star point; a first switch unit containing switch elements for generating an AC voltage for the electric machine from a DC voltage of a first voltage level; a DC voltage of a second voltage level; and a second switch unit for a bidirectional electrical energy flow between the DC voltage of the first voltage level and the DC voltage of the second voltage level, wherein the second switch unit has two switch elements arranged in series in an auxiliary switch branch, wherein the auxiliary switch branch is connected in parallel to the DC voltage of the first voltage level, and each connection of the switch elements is connected to the star point.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: December 10, 2019
    Assignee: RWTH Aachen
    Inventors: Murat Senol, Rik W. De Doncker