Patents Assigned to Universitaet Hannover
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Patent number: 12168083Abstract: The invention relates to a method for producing a bioartificial and primarily acellular fibrin-based construct, wherein a mixture of cell-free compositions containing fibrinogen and thrombin is applied to a surface and subsequently pressurised. An additional aspect of the invention is directed to such fibrin-based bioartificial acellular constructs obtained according to the invention, with improved biomechanical properties, as well as to the use of same in the field of implantology, cartilage replacement or tissue replacement.Type: GrantFiled: June 14, 2021Date of Patent: December 17, 2024Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITÄT HANNOVERInventors: Thomas Aper, Mathias Wilhelmi, Axel Haverich
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Patent number: 12080384Abstract: The present invention relates to a method for compressing genomic data, whereby the genomic data are stored in at least one data file containing at least a plurality of reads built by a genome sequencing method, whereby each read includes a mapping position, a CIGAR string and an actual sequenced nucleotide sequence as a local part of the donor genome, comprising the steps: —unwind a nucleotide sequence of a current read of one of said data files by using the mapping position and the CIGAR string of said current read, whereby said current read has at least one previous read, —compute a difference between the unwound nucleotide sequence of said current read and an unwound nucleotide sequence of at least one of said previous reads, whereby said difference contains the differences of the mapping positions and the nucleotide sequences, —pass said computed difference to an entropy coder to compress said difference, —encode said current read by the compressed difference, and —repeat the forgoing steps with said curType: GrantFiled: June 16, 2016Date of Patent: September 3, 2024Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVERInventors: Marco Munderloh, Jan Voges, Joern Ostermann
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Patent number: 11867713Abstract: An optomechanical inertial reference mirror combines an optomechanical resonator with a reflector that serves as an inertial reference for an atom interferometer. The optomechanical resonator is optically monitored to obtain a first inertial measurement of the reflector that features high bandwidth and high dynamic range. The atom interferometer generates a second inertial measurement of the reflector that features high accuracy and stability. The second inertial measurement corrects for drift of the first inertial measurement, thereby resulting in a single inertial measurement of the reflector having high bandwidth, high dynamic range, excellent long-term stability, and high accuracy. The reflector may be bonded to the resonator, or formed directly onto a test mass of the resonator. With a volume of less than one cubic centimeter, the optomechanical inertial reference mirror is particularly advantageous for portable atomic-based sensors and systems.Type: GrantFiled: February 15, 2020Date of Patent: January 9, 2024Assignees: Arizona Board of Regents on Behalf of The University of Arizona, Leibniz Universität HannoverInventors: Felipe Guzmán, Ernst Maria Rasel, Dennis Schlippert
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Patent number: 11848074Abstract: A method for determining an optimized nucleotide sequence encoding a predetermined amino acid sequence, wherein the nucleotide sequence is optimized for expression in a host cell, and wherein the method comprises the steps of: (a) generating a plurality of candidate nucleotide sequences encoding the predetermined amino acid sequence; (b) obtaining a sequence score based on a scoring function based on a plurality of sequence features that influence protein expression in the host cell using a statistical machine learning algorithm, wherein the plurality of sequence features comprises one or more sequence features selected from the group consisting of protein per time, average elongation rate and accuracy for each of the plurality of candidate nucleotide sequences of step (a); and (c) determining the candidate nucleotide sequence with optimized protein expression in the host cell as the optimized nucleotide sequence.Type: GrantFiled: December 6, 2017Date of Patent: December 19, 2023Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITÄT HANNOVERInventors: Reinhard Lipowsky, Sophia Rudorf, Holger Lossner, Jan-Hendrik Trosemeier, Ina Koch, Christel Kamp
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Publication number: 20230358760Abstract: The present invention relates to an aptamer comprising a nucleotide sequence SEQ ID NO: 1, preferably comprising or consisting of a nucleotide sequence SEQ ID NO: 4-6. The invention further relates to a composition comprising the aptamer, and the use of the aptamer as a medicament or a diagnostic reagent, particularly for use in the detection or diagnosing of a rejection of a renal allograft.Type: ApplicationFiled: August 31, 2021Publication date: November 9, 2023Applicants: RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITÄT BONN, LEIBNIZ UNIVERSITÄT HANNOVERInventors: Günter MAYER, Julia SIEGL, Cornelia BLUME, Linh PHUNG
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Patent number: 11448615Abstract: The invention relates to an ion transport device which is designed to transport ions by means of an electric field. The ion transport device has an ion transport channel in which an ion transport chamber is formed. In order to generate the electric field, the ion transport device has a plurality of field generating electrodes which are arranged one behind the other along the length of the ion transport channel in order to move ions through the ion transport chamber in a transport direction. The invention additionally relates to an ion mobility spectrometer and to a mass spectrometer.Type: GrantFiled: May 29, 2019Date of Patent: September 20, 2022Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVERInventors: Stefan Zimmermann, Ansgar Kirk, Alexander Bohnhorst
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Patent number: 11366078Abstract: The invention relates to an ion mobility spectrometer which has at least a first drift chamber and a first switchable ion gate for the controlled transfer of ions into the first drift chamber, wherein: —the first ion gate is designed as a field switching ion gate having at least a first counter electrode and a first injection electrode; wherein—a first ionization chamber is formed between the first counter electrode and the first injection electrode, into which first ionization chamber ions to be analyzed by ion mobility spectrometry can be fed from an ionization source. The invention also relates to an ion mobility spectrometer which has at least a first drift chamber and a first switchable ion gate for the controlled transfer of ions into the first drift chamber and a second drift chamber separated from the first drift chamber and a second switchable ion gate for the controlled transfer of ions into the second drift chamber.Type: GrantFiled: April 3, 2019Date of Patent: June 21, 2022Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVERInventors: Stefan Zimmermann, Ansgar Kirk, André Ahrens, Moritz Hitzemann, Martin Lippmann
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Publication number: 20210164939Abstract: The invention relates to an ion mobility spectrometer which has at least a first drift chamber and a first switchable ion gate for the controlled transfer of ions into the first drift chamber, wherein: —the first ion gate is designed as a field switching ion gate having at least a first counter electrode and a first injection electrode; wherein—a first ionization chamber is formed between the first counter electrode and the first injection electrode, into which first ionization chamber ions to be analyzed by ion mobility spectrometry can be fed from an ionization source. The invention also relates to an ion mobility spectrometer which has at least a first drift chamber and a first switchable ion gate for the controlled transfer of ions into the first drift chamber and a second drift chamber separated from the first drift chamber and a second switchable ion gate for the controlled transfer of ions into the second drift chamber.Type: ApplicationFiled: April 3, 2019Publication date: June 3, 2021Applicant: Gottfried Wilhelm Leibniz Universität HannoverInventors: Stefan ZIMMERMANN, Ansgar KIRK, André AHRENS, Moritz HITZEMANN, Martin LIPPMANN
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Patent number: 10938415Abstract: Method for encoding of quality values of a data structure, whereby said data structure comprises a set of genomic reads, wherein the method comprises the following steps executable by a data processing system: ascertain the quality values of each read covering a certain index locus, —determine a codebook identifier identifying a specific codebook from a plurality of codebooks for said certain index locus based on the ascertained quality values of said certain index locus, whereby each code-book provides a mapping from a quality value of said quality value alphabet to a corresponding quantized quality value of a quantized quality value alphabet, —quantizing all ascertained quality values at said certain index locus using the specific codebook identified by the codebook identifier at said certain index locus in order to obtain for each quality value at said certain index locus a corresponding quantized quality value, and —encode all determined codebook identifiers using a first entropy encoder and encode all quType: GrantFiled: July 16, 2018Date of Patent: March 2, 2021Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITÄT HANNOVERInventors: Jan Voges, Jörn Ostermann
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Patent number: 10741373Abstract: The invention relates to a method for operating an ion gate having a first, a second, and a third electrode which are arranged one after the other in an intended drifting direction of ions to be influenced by the ion gate, in such a way that the second electrode is arranged after the first electrode and the third electrode is arranged after the second electrode in the drift direction. The ion gate can be switched between a closed state, in which ions cannot drift through the ion gate in the intended drifting direction, and an open state, in which ions can drift through the ion gate in the intended drifting direction. This is accomplished by applying potentials that alternate over time to one or more of the electrodes. In a switching cycle of the ion gate, which comprises the open state and the closed state of the ion gate, two different closed states of the ion gate are produced. In a first closed state, the ion gate is closed by applying a first potential between the second and third electrodes.Type: GrantFiled: August 9, 2019Date of Patent: August 11, 2020Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITÄT HANNOVERInventors: Stefan Zimmermann, Ansgar Kirk
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Patent number: 10668272Abstract: A cochlear implant of a cochlear implant system is described. The cochlear implant comprises electrodes which are mechanically connected to one another and can be inserted in a row in the form of a spiral into a cochlea in order for auditory nerve receptors to be stimulated, a control circuit that can specifically apply electric pulses to the individual electrodes, and an energy source. The control circuit allows the electrodes to be fed in a pulsed manner with electric signals generated by a processor from the acoustic signals, and auditory nerve receptors adjacent to the electrodes to be stimulated. The electrodes are components of modules, each of which comprises its own decoder-and-control circuit for decoding module addresses and stimulation signals and generating electric pulses for the electrodes. Encoded module addresses and stimulation signals generated from acoustic signals are applied to inputs of the decoder-and-control circuit.Type: GrantFiled: July 27, 2016Date of Patent: June 2, 2020Assignees: MEDIZINISCHE HOCHSCHULE HANNOVER, GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVERInventors: Holger Blume, Wolfgang Ertmer, Thomas Lenarz, Andrej Kral
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Patent number: 10408791Abstract: The invention relates to a method for operating an ion gate having at least a first, a second, and a third electrode, which are arranged one after the other in an intended drifting direction of ions to be influenced by the ion gate, in such a way that the second electrode is arranged after the first electrode and the third electrode is arranged after the second electrode in the drifting direction, wherein the ion gate can be switched between a closed state, in which ions cannot drift through the ion gate in the intended drifting direction, and an open state, in which ions can drift through the ion gate in the intended drifting direction, by applying potentials that alternate over time to one or more of the electrodes mentioned above, wherein, in a switching cycle of the ion gate, which comprises the open state and the closed state of the ion gate, two different closed states of the ion gate are produced in that, in a first closed state, the ion gate is closed by applying a first potential difference between tType: GrantFiled: August 2, 2016Date of Patent: September 10, 2019Assignee: GOTTFRIED WILELM LEIBNIZ UNIVERSITAET HANNOVERInventors: Stefan Zimmermann, Ansgar Kirk
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Patent number: 10247665Abstract: The invention relates to a device tier determining a concentration of a chemical substance dissolved in a liquid, which chemical substance absorbs light (10) of an absorption wavelength, wherein the device comprises: at least one flow-through chamber (2) having at least one inlet opening (4), at least one outlet opening (6), and at least one peripheral wall (24); at least one laser (8) for emitting light (10) of the absorption wavelength; and at least one detector (18) for detecting the emitted light (10); wherein the laser (8) and the detector (18) are arranged in such a way that the light (10) emitted by the laser (8) is conducted through the flow-through chamber (2) along at least two different paths before said light hits the detector (18), and wherein the device has two lasers (8) which emit light of different wavelengths. The invention further relates to a method for producing a flow-through chamber for such a device.Type: GrantFiled: January 19, 2015Date of Patent: April 2, 2019Assignee: Gottfried Wilhelm Leibniz Universitaet HannoverInventors: Lutz Rissing, Stephanie Holz, Dominik Hoheisel
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Publication number: 20180200504Abstract: A cochlear implant of a cochlear implant system is described. The cochlear implant comprises electrodes which are mechanically connected to one another and can be inserted in a row in the form of a spiral into a cochlea in order for auditory nerve receptors to be stimulated, a control circuit that can specifically apply electric pulses to the individual electrodes, and an energy source. The control circuit allows the electrodes to be fed in a pulsed manner with electric signals generated by a processor from the acoustic signals, and auditory nerve receptors adjacent to the electrodes to be stimulated. The electrodes are components of modules, each of which comprises its own decoder-and-control circuit for decoding module addresses and stimulation signals and generating electric pulses for the electrodes. Encoded module addresses and stimulation signals generated from acoustic signals are applied to inputs of the decoder-and-control circuit.Type: ApplicationFiled: July 27, 2016Publication date: July 19, 2018Applicants: Medizinische Hochschule Hannover, Gottfried Wilhelm Leibniz Universitaet HannoverInventors: Holger BLUME, Wolfgang ERTMER, Thomas LENARZ, Andrej KRAL
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Patent number: 9759684Abstract: A gas analyzing device including at least one ion mobility spectrometer is provided. The gas analyzing device also includes an energy supply device interacting with a reaction chamber of the ion mobility spectrometer which is designed to manipulate the density of free reactant ions in the reaction chamber by supplying energy. A method for analyzing gas by means of a gas analyzing device according to the ion mobility spectrometry is also provided.Type: GrantFiled: December 10, 2014Date of Patent: September 12, 2017Assignee: Gottfried Wilhelm Leibniz Universitaet HannoverInventors: Stefan Zimmermann, Philipp Cochems, Jens Langejürgen, Ansgar Kirk
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Patent number: 9458200Abstract: The present invention relates to the use of particular macrocycles that are inhibitors of the proteasomic degradation of p27, in particular argyrin and derivatives thereof, for a treatment in a variety of conditions, such as the induction of immunotolerance, autoimmune diseases, bacterial infections, and proliferative diseases, such as cancers.Type: GrantFiled: June 23, 2009Date of Patent: October 4, 2016Assignees: Gottfried Wilhelm Leibniz Universität Hannover, Medizinische Hochschule Hannover, Helmholtz-Zentrum für Infektionsforschung GmbHInventors: Markus Kalesse, Nisar Malek, Ronald Frank, Tobias Brodmann, Leila Bülow, Andreas Rentsch, Anna-Katharina Girbig, Ulrike Eggert
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Patent number: 9373774Abstract: A piezo actuator includes an actuator body with a plurality of piezo elements and a tensioning device loading the actuator body with a bias. The tensioning device includes a traction device mounted as a biased winding on the actuator body in a plurality of turns around the actuator body. The traction device is at least one of resilient or flexible.Type: GrantFiled: November 21, 2011Date of Patent: June 21, 2016Assignee: GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVERInventors: Joerg Wallaschek, Sebastian Mojrzisch, Jan Bremer
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Publication number: 20150274637Abstract: The present invention relates to a compound of formula (I) as defined herein.Type: ApplicationFiled: September 10, 2012Publication date: October 1, 2015Applicants: Gottfried Wilhelm Leibniz Universitaet Hannover, Mediziniche Hochschule HannoverInventors: Dietmar Manstein, Matthias Preller, Marcus Furch, Markus Kalesse, Nina Diaz-Gomez
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Patent number: 8783079Abstract: A portable handheld device for introducing an external profile into a longitudinal workpiece by noncutting shaping includes a locking element and a profiling tool having a pitchless profile disposed opposite the locking element and disposable at an adjustable angle as a function of a desired lead angle of the external profile within a force transmission plane, wherein the workpiece is disposable and removable between the profiling tool and the locking element, and wherein the profile tool and the locking element are configured to execute a feed movement relative to one another and to be adjustable to a neutral position.Type: GrantFiled: March 3, 2009Date of Patent: July 22, 2014Assignee: Gottfried Wilhelm Leibniz Universitaet HannoverInventors: Bernd-Arno Behrens, Hagen Schmidt, Philipp Silberkuhl, Dietmar Schnier
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Publication number: 20130241354Abstract: A piezo actuator includes an actuator body with a plurality of piezo elements and a tensioning device loading the actuator body with a bias. The tensioning device includes a traction device mounted as a biased winding on the actuator body in a plurality of turns around the actuator body. The traction device is at least one of resilient or flexible.Type: ApplicationFiled: November 21, 2011Publication date: September 19, 2013Applicant: GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVERInventors: Joerg Wallaschek, Sebastian Mojrzisch, Jan Bremer