Patents Assigned to UNIVERSITAET WIEN
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Publication number: 20250189855Abstract: The present invention relates to novel organic (i.e., metal-free) catechol-based irreversible electrochromic matrix, wherein a catechol-based molecule irreversibly changes its properties upon application of an electrically-induced stimulus. The invention further relates to the production of irreversible electrochromic devices comprising a repository containing the catechol-based molecule, to the manufacture of said electrochromic devices and to the use thereof.Type: ApplicationFiled: March 24, 2023Publication date: June 12, 2025Applicant: UNIVERSITAET WIENInventors: Davide BONIFAZI, Laura MAGGINI, Antoine STOPIN, Gianvito ROMANO
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Patent number: 12239586Abstract: The invention relates to a mechanical wheelchair drive, comprising a rotatably mounted lever, a handle fastened to the lever, and a force transfer unit for transferring rotational motion of the lever to a wheelchair wheel, wherein the lever has a variable length and is guided along a closed guide of a guide plate, said guide deviating from the circular form, such that the length of the lever changes during the rotational motion.Type: GrantFiled: July 16, 2019Date of Patent: March 4, 2025Assignee: TECHNISCHE UNIVERSITAET WIENInventors: Margit Gfoehler, Nithin Babu Rajendra Kurup, Markus Puchinger
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Publication number: 20240385104Abstract: A gas-sensing apparatus is provided. The gas-sensing apparatus comprises a test chamber formed in a body and comprising a pair of micromirrors. One of the pair of micromirrors is disposed on a first surface of the body and the other of the pair of micromirrors is disposed on a second surface of the body, forming an optical cavity. A light inlet is arranged to couple light into the optical cavity, and light outlets are arranged to receive light from the optical cavity. A gas inlet configured to allow gas from outside of the detector to enter the test chamber. A gas detector comprising a gas-sensing apparatus, a light emitting system, and a light detecting system is also provided.Type: ApplicationFiled: June 28, 2022Publication date: November 21, 2024Applicant: UNIVERSITAET WIENInventors: Stefan PUTZ, Michael TRUPKE
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Publication number: 20240241423Abstract: A quantum optical memristor for manipulating photon quantum states includes a Mach-Zehnder interferometer having a first optical input and a first optical output and a second optical output. The first optical input and the first optical output of the Mach-Zehnder interferometer are a first optical input and a first optical output of the quantum optical memristor respectively. A detector is configured to detect a time-dependent optical signal at the second optical output of the Mach-Zehnder interferometer. A controller is configured to compute a target reflectivity of the Mach-Zehnder interferometer, wherein the controller is configured to update the reflectivity of the Mach-Zehnder interferometer to match the computed target reflectivity. The controller is configured to compute the target reflectivity based on the derivative of the reflectivity with respect to time. The derivative of the reflectivity with respect to time is a linear function of the detected signal.Type: ApplicationFiled: May 6, 2022Publication date: July 18, 2024Applicant: UNIVERSITAET WIENInventors: Michele SPAGNOLO, Francesco MASSA, Philip WALTHER
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Patent number: 11655314Abstract: Compounds of formula (I) are photoinitiators or photosensitizers in a photopolymerizable composition: R1 represents a monovalent, linear, branched or cyclic, aliphatic hydrocarbon group having 1 to 20 carbon atoms, optionally substituted with substituent(s) selected from —Cl, —Br, —OH, ?O, —NH—CO—OR2, —NH—CO—R2 or free-radically or ionically polymerizable groups. Each R2 is independently —H or C1-6 alkyl; n is ?1. If n=1, Z and Y are absent and X represents —OR3; if n is >1, Z represents —OR4—, Y represents —OR5— and X represents —H or —OH. R3 represents —H or R1; and R4 and R5 each independently represent a bivalent hydrocarbon group. The polymerizable moieties as optional substituents of R1 are polymerizable double or triple bonds, lactam, lactone and epoxide moieties, which are subjectable to ring-opening polymerization; and two of R1 to R5 may be linked to one another to form a ring or a dimer.Type: GrantFiled: April 13, 2022Date of Patent: May 23, 2023Assignee: TECHNISCHE UNIVERSITAET WIENInventors: Robert Liska, Patrick Knaack, Paul Gauss, Roland Taschner
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Patent number: 11645439Abstract: Disclosed is a method for validating a hardware system by a model thereof, which method comprises: providing reference structures and determining, in the model, sub-structures, each of which is structurally equivalent to one of the reference structures; extracting, from the model, input cones for each sub-structure; creating monopartite candidate graphs by mapping the bipartite sub-structure and the respective input cones to one of the candidate graphs; creating, for each candidate graph, a match vector, each dimension of the match vector comprising a count of occurrences, in the candidate graph, of a different one of predetermined graphlets; clustering, on the basis of similarity of the match vectors, the candidate graphs in clusters; and selecting, from each of the clusters, one candidate graph and determining a functional behaviour of the respective sub-structure of the selected candidate graph for validating the hardware system.Type: GrantFiled: December 11, 2019Date of Patent: May 9, 2023Assignee: TECHNISCHE UNIVERSITAET WIENInventor: Christian Krieg
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Patent number: 11518823Abstract: Compounds of formula (I) are photoinitiators or photosensitizers in a photopolymerizable composition: R1 represents a monovalent, linear, branched or cyclic, aliphatic hydrocarbon group having 1 to 20 carbon atoms, optionally substituted with substituent(s) selected from —Cl, —Br, —OH, ?O, —NH—CO— OR2, —NH—CO—R2 or free-radically or ionically polymerizable groups. Each R2 is independently —H or C1-6 alkyl; n is ?1. If n=1, Z and Y are absent and X represents —OR3; if n is >1, Z represents —OR4—, Y represents —ORs— and X represents —H or —OH. R3 represents —H or R1; and R4 and R5 each independently represent a bivalent hydrocarbon group. The polymerizable moieties as optional substituents of R1 are polymerizable double or triple bonds, lactam, lactone and epoxide moieties, which are subjectable to ring-opening polymerization; and two of R1 to R5 may be linked to one another to form a ring or a dimer.Type: GrantFiled: July 27, 2018Date of Patent: December 6, 2022Assignee: TECHNISCHE UNIVERSITAET WIENInventors: Robert Liska, Patrick Knaack, Paul Gauss, Roland Taschner
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Patent number: 11413717Abstract: A method is provided for detecting a substance, preferably human tissue, in the vicinity of a mobile tool, wherein the substance to be detected has different electrical characteristics from a material that can be processed by the mobile tool. In the method, a change is detected in a capacitance formed by the tool and a counter electrode that is electrically insulated from the tool. A periodic change in the capacitance is detected and the change is produced by the presence of the substance in a region in relation to the tool and by a periodic change in a geometrical characteristic of the tool in this region as the tool moves.Type: GrantFiled: October 1, 2018Date of Patent: August 16, 2022Assignees: FELDER KG, TECHNISCHE UNIVERSITAET WIENInventors: Thomas Weiler, Helmut Caudr, Friedrich Bleicher
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Publication number: 20220067252Abstract: Disclosed is a method for validating a hardware system by a model thereof, which method comprises: providing reference structures and determining, in the model, sub-structures, each of which is structurally equivalent to one of the reference structures; extracting, from the model, input cones for each sub-structure; creating monopartite candidate graphs by mapping the bipartite sub-structure and the respective input cones to one of the candidate graphs; creating, for each candidate graph, a match vector, each dimension of the match vector comprising a count of occurrences, in the candidate graph, of a different one of predetermined graphlets; clustering, on the basis of similarity of the match vectors, the candidate graphs in clusters; and selecting, from each of the clusters, one candidate graph and determining a functional behaviour of the respective sub-structure of the selected candidate graph for validating the hardware system.Type: ApplicationFiled: December 11, 2019Publication date: March 3, 2022Applicant: TECHNISCHE UNIVERSITAET WIENInventor: Christian KRIEG
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Patent number: 11243162Abstract: A method and an interferometric device for spectroscopically or spectrometrically examining a sample, comprising: a) generating a laser beam having a wavelength, b) splitting the laser beam into a measurement beam and a reference beam, c) interacting the sample with the measurement beam, d) interacting a reference with the reference beam, e) overlaying the measurement beam and the reference beam, f) detecting a first output beam, g) detecting a second output beam, h) forming a differential signal between the first output signal and the second output signal, i) controlling the differential signal to a predefined target value, j) determining a refractive index of the sample from the adjustment of the phase difference between the measurement beam and the reference beam, k) repeating steps a) to j) for additional wavelengths of the laser beam.Type: GrantFiled: July 26, 2018Date of Patent: February 8, 2022Assignee: TECHNISCHE UNIVERSITAET WIENInventors: Bernhard Lendl, Jakob Hayden, Bettina Baumgartner, Christian Kristament
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Patent number: 11226245Abstract: A force sensor includes a frame and an oscillation structure which has arms and can oscillate freely in the frame. The arms are fixed to suspension frame regions and run transverse to one another at least in sections. At least one conductor extends along at least two arms. An AC voltage can be applied to the at least one conductor to excite at least one oscillation mode of the oscillation structure with a resonant frequency using Lorentz force. The force sensor is designed such that the suspension regions are at least partially spatially displaced relative to one another when a force is applied to the frame, that the magnitude of the spatial displacement of the suspension regions depends on the magnitude of the force, and that the spatial displacement of the suspension regions causes detuning of the resonant frequency, the magnitude of which depends on the spatial displacement magnitude.Type: GrantFiled: March 31, 2017Date of Patent: January 18, 2022Assignee: Technische Universitaet WienInventors: Alexander Dabsch, Franz Keplinger, Christoph Rosenberg
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Publication number: 20210116313Abstract: A force sensor includes a frame and an oscillation structure which has arms and can oscillate freely in the frame. The arms are fixed to suspension frame regions and run transverse to one another at least in sections. At least one conductor extends along at least two arms. An AC voltage can be applied to the at least one conductor to excite at least one oscillation mode of the oscillation structure with a resonant frequency using Lorentz force. The force sensor is designed such that the suspension regions are at least partially spatially displaced relative to one another when a force is applied to the frame, that the magnitude of the spatial displacement of the suspension regions depends on the magnitude of the force, and that the spatial displacement of the suspension regions causes detuning of the resonant frequency, the magnitude of which depends on the spatial displacement magnitude.Type: ApplicationFiled: March 31, 2017Publication date: April 22, 2021Applicant: Technische Universitaet WienInventors: Alexander DABSCH, Franz KEPLINGER, Christoph ROSENBERG
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Patent number: 10960490Abstract: A friction stir welding tool includes a rotation-symmetrical shaft having a proximal end, a distal end, and a pin, which is arranged concentrically about the rotation axis and which has a smaller diameter than the shaft at the proximal end thereof, and thus projects as compared to a shoulder region of the shaft. The shaft, at least in the shoulder region, and the pin each consists of a high-temperature-resistant metal or an alloy thereof. The pin and/or the shaft in the shoulder region consist of or are coated by a composite material, which substantially consists of molybdenum, tungsten, niobium or tantalum or an alloy of at least one of these metals, and a reinforcement phase embedded therein and consisting of at least one material having a Mohs hardness >6, a micrometer particle size, and a free enthalpy of formation at 1300 K of less than ?350 kJ/mol O2.Type: GrantFiled: October 31, 2016Date of Patent: March 30, 2021Assignees: TECHNISCHE UNIVERSITAET WIEN, STIRTEC GMBHInventors: Christian Gierl-Mayer, Herbert Danninger, Thomas Weinberger, Gunter Figner
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Patent number: 10921345Abstract: The invention relates to a method for the contactless determining of the speed of a fluid flow and the concentration of at least one analyte therein, wherein a) the flow speed is measured by means of laser Doppler anemometry (LDA) using tracer particles which pass through an interference fringe pattern in the intersection region of two coherent monochromatic light beams and thereby generate a scattered light signal; and b) the concentration of the at least one analyte is measured by means of Raman spectroscopy, wherein a monochromatic light beam is radiated in and the Raman spectrum of the light inelastically scattered on the analyte molecules in the flow is recorded; wherein c) a single light source is used for both the LDA and the Raman spectroscopy, such that both measurements are carried out in the intersection region of two two coherent light beams coming from the light source, wherein the speed is measured by photons elastically scattered onto the tracer particles, and the concentration is measured by pType: GrantFiled: April 18, 2018Date of Patent: February 16, 2021Assignee: TECHNISCHE UNIVERSITAET WIENInventors: Michael Harasek, Bernhard Lendl, Christoph Gasser, Bahram Haddadi, Christian Jordan
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Patent number: 10845217Abstract: Sensor for determining a rotation angle (?) about a rotation axis. The sensor includes a rotary element mounted in a base element so as to be rotatable about the rotation axis. The rotary element is made from a first material having a first refractive index n1 and is constructed from several layers. At least one light generating device is fixedly arranged relative to the base element. At least one light detection device is fixedly arranged relative to the base element and configured to detect a light signal. At least one refractive structure is arranged in each layer and has a second refractive index n2, wherein n2?n1. The at least one beam path extends at least in a first rotation angle range through the at least one refractive structure in order to be able to assign a specific rotation angle (?) to the light signal detected by the at least one light detection device at least in the first rotation angle range.Type: GrantFiled: November 17, 2016Date of Patent: November 24, 2020Assignee: TECHNISCHE UNIVERSITAET WIENInventors: Alexander Dabsch, Franz Keplinger, Andreas Kainz
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Patent number: 10738146Abstract: The invention relates to a process for free radical-induced cationic frontal polymerization of cationically polymerizable monomers using a combination of at least one cationic polymerization initiator and at least one activator for said at least one initiator, characterized in that benzopinacol is used as said activator.Type: GrantFiled: September 2, 2016Date of Patent: August 11, 2020Assignee: Technische Universitaet WienInventors: Robert Liska, Daniel Bomze, Wolfgang Kern, Patrick Knaack
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Publication number: 20200224072Abstract: The invention relates to a method of thermo-chemical energy storage by carrying out reversible chemical reactions for storing heat energy in the form of chemical energy in one or more ammine complexes of transition metal salts of the formula [Me(NH3)n]X, wherein Me is at least one transition metal ion and X is one or more counterions in an amount sufficient for charge equalization of the complex, by using the following chemical equilibrium: [Me(NH3)n]X+?HRMeX+nNH3, characterized in that said heat storage is performed by endothermic cleavage of the NH3 ligands from the ammine complex and/or that the heat release is performed by exothermic loading of the transition metal salt with the NH3 ligands in at least two steps at different temperatures.Type: ApplicationFiled: August 14, 2018Publication date: July 16, 2020Applicants: Technische Universitaet Wien, Akademie Der Bildenden Kuenste WienInventors: Danny MUELLER, Christian KNOLL, Peter WEINBERGER, Andreeas WERNER, Michael HARASEK
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Patent number: 10559936Abstract: A solid-state laser active medium comprising an optical gain material; a heat sink, wherein the heat sink is transparent, in particular over a wavelength range of 200 nm to 4000 nm, preferably with an absorption coefficient of <1 cm?1; the heat sink having a high thermal conductivity, in particular ?149 W/(m*K); wherein the optical gain material and the heat sink exhibit a root-mean square, RMS, surface roughness of <1 nm; wherein the optical gain material is attached to the transparent heat sink by direct bonding.Type: GrantFiled: August 28, 2015Date of Patent: February 11, 2020Assignee: Universitaet WienInventors: Markus Aspelmeyer, Garrett Cole
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Publication number: 20190309123Abstract: The invention relates to a process for free radical-induced cationic frontal polymerization of cationically polymerizable monomers using a combination of at least one cationic polymerization initiator and at least one activator for said at least one initiator, characterized in that benzopinacol is used as said activator.Type: ApplicationFiled: September 2, 2016Publication date: October 10, 2019Applicant: Technische Universitaet WienInventors: Robert LISKA, Daniel BOMZE, Wolfgang KERN, Patrick KNAACK
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Patent number: 10265644Abstract: An enantioselective zwitterionic ion-exchange material comprising a chiral selector component (SO) comprising at least one cation exchange group and at least one anion exchange group and a carrier, carrying said selector component, wherein the chiral selector component comprises at least one chiral linker moiety to connect said ion exchange groups in a non-macrocyclic fashion, and said chiral linker moiety contains at least one ?-? interaction site.Type: GrantFiled: February 29, 2016Date of Patent: April 23, 2019Assignee: UNIVERSITAET WIENInventors: Wolfgang Lindner, Michael Laemmerhofer, Christian Hoffman