Patents Assigned to RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHEN
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Patent number: 11992400Abstract: 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: GrantFiled: June 25, 2019Date of Patent: May 28, 2024Assignee: Rheinisch-Westfalische Technische Hochschule AachenInventors: Alexander Löwen, Valentine Gesché, Stefan Jockenhövel, Thomas Gries
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Publication number: 20220233325Abstract: A wrist endoprosthesis (2) for functional replacement of the human wrist, containing a radius component (4) that has a shaft (10) for anchoring in the radius, a head (12), and a first joint surface (16), which is implemented on a distal head face (14), and a carpal component (6) that has a proximal carpal face (22), a distal carpal face (20) and a second joint surface (24) which is formed on the proximal carpal face (22) and interacts with the first joint surface (169) of the radius component (4), characterized in that the carpal component (6) is substantially trough-shaped, in order to at least partially surround the carpal bones. Also, a wrist endoprosthesis (2) that has anti-luxation protection (8), a method for producing wrist endoprostheses (2) and a computer program product.Type: ApplicationFiled: May 26, 2020Publication date: July 28, 2022Applicant: Rheinisch-Westfälische Technische Hochschule Aachen (RWTH)Inventors: Sophia LEVEN, Jörg ESCHWEILER, Markus TINGART, Björn RATH
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Patent number: 10190128Abstract: The present invention relates to kits comprising plus-sense single stranded RNA viral vectors, as well as mixtures of these vectors and uses thereof, and methods for producing in a plant, or plant tissue, or plant cell simultaneously two or more polypeptides using the kits and vectors.Type: GrantFiled: March 21, 2014Date of Patent: January 29, 2019Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Rheinisch-Westfälische Technische Hochschule AachenInventors: Ulrich Commandeur, Christina Dickmeis, Rainer Fischer
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Patent number: 10072093Abstract: A polypeptide which binds to the surface of AML blast cells and is internalized upon binding to the AML blast cells.Type: GrantFiled: July 4, 2014Date of Patent: September 11, 2018Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHENInventors: Stefan Barth, Jenny Fitting, Mehmet Kemal Tur
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Patent number: 10054601Abstract: The present invention relates to a method for determining the propensity of a fluid for calcification.Type: GrantFiled: April 24, 2017Date of Patent: August 21, 2018Assignee: Rheinisch-Westfälische Technische Hochschule AachenInventors: Wilhelm Jahnen-Dechent, Andreas Pasch, Stefan Farese, Steffen Gräber
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Patent number: 9795540Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.Type: GrantFiled: November 12, 2015Date of Patent: October 24, 2017Assignee: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHENInventors: Stefan Wolfart, Andrij Pich
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Publication number: 20170292962Abstract: The present invention relates to a method for determining the propensity of a fluid for calcification.Type: ApplicationFiled: April 24, 2017Publication date: October 12, 2017Applicant: Rheinisch-Westfälische Technische Hochschule AachenInventors: Wilhelm Jahnen-Dechent, Andreas Pasch, Stefan Farese, Steffen Gräber
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Publication number: 20170237355Abstract: The invention relates to a DC-DC converter as well as to a DC network having a DC-DC converter, and to a method to operate a DC network having a DC-DC converter, whereby the DC-DC converter comprises a circuit arrangement with two bridge connections having semiconductor switches and a transformer arranged between the bridge connections. The transformer is provided with a step switch by means of which the transformation ratio can be switched. Through the selection of the transformation ratio, the soft-switched range of the dual active bridge in the form of the DC-DC converter can be enlarged. Consequently, a purely capacitive snubber can be used as the snubber, as a result of which the switching losses can be reduced.Type: ApplicationFiled: July 22, 2015Publication date: August 17, 2017Applicant: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHENInventors: MARCO STIENEKER, RIK DE DONCKER
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Publication number: 20170114810Abstract: A method for producing a bonded joint between a light metal of a first component and a steel material of a second component, wherein a protective-gas joining process is used, a zinc-based filler material is used, and wherein an arc of the protective-gas joining process reaches at least the steel material of the second component, wherein a phase space of at least intermetallic phase composed of iron and the light metal is produced in a joining region adjacent to the steel material. Introduction of heat occurs so that the joint to the steel material is a solder or brazed connection and, during joining, a detachment of part of the solidified intermetallic phase(s) from the steel material of the second component starts in a melt of a solder or brazed matrix formed by the filler material and the at least one intermetallic phase is embedded in the solder matrix.Type: ApplicationFiled: April 1, 2015Publication date: April 27, 2017Applicant: RHEINISCH WESTFÄLISCHE TECHNISCHE HOCHSCHULE AACHEN (RWTH)Inventors: Matthias ANGERHAUSEN, Uwe REISGEN
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Publication number: 20160160634Abstract: A device and a method is disclosed for detecting an undesired escape of fluids, in that electric potentials are measured using a grid of non-polarizable measuring electrodes above an underground storage facility. Potential differences are determined in such a way that disturbances due to injection borehole or due to the exchange of fluids in the underground storage facility are eliminated. This is done either through the use of the symmetry of the potential distribution around the injection borehole in that the potential differences of pairs of measuring electrodes are observed whose mid-points coincide with the injection borehole or else through the computational simulation of the potentials that arise due to the fluid movement in the underground storage facility without a leak. These are then subtracted from the measured potentials. If the ascertained potential differences exceed a limit value, this is considered as an indication of a leak.Type: ApplicationFiled: October 22, 2015Publication date: June 9, 2016Applicant: Rheinisch-Westfälische Technische Hochschule AachenInventors: Norbert Klitzsch, Christian Vogt
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Publication number: 20160058674Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.Type: ApplicationFiled: November 12, 2015Publication date: March 3, 2016Applicant: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHENInventors: Stefan WOLFART, Andrij PICH
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Patent number: 9216933Abstract: A method for the reduction of carbon dioxide and/or carbon dioxide derivatives to methanol comprises the step of hydrogenation carbon dioxide and/or carbon dioxide derivatives in the presence of a Ruthenium-phosphine complex.Type: GrantFiled: April 16, 2013Date of Patent: December 22, 2015Assignee: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHENInventors: Jürgen Klankermayer, Walter Leitner, Sebastian Wesselbaum, Thorsten Vom Stein
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Publication number: 20140080097Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.Type: ApplicationFiled: May 18, 2012Publication date: March 20, 2014Applicant: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHENInventors: Stefan Wolfart, Andrij Pich
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Patent number: 7989730Abstract: The present invention relates to a method for determining a lateral relative movement between a processing head and a workpiece during processing the workpiece as well as a device to carry it out. In the method a surface of the workpiece (12) is illuminated in the region of the processing head with an optical radiation (2). The optical radiation (3) reflected from the surface of the workpiece (12) in the region of the processing head is repeatedly detected in a locally resolved manner by an optical detector (9), which is firmly fixed mechanically to the processing head, to obtain optical reflection patterns. The repeated detection occurs in temporal intervals in which the temporally successive reflection patterns of overlapping surface regions of the workpiece (12) are obtained. The lateral relative movement is determined by comparing the temporally successive reflection patterns.Type: GrantFiled: May 4, 2006Date of Patent: August 2, 2011Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Rheinisch-Westfälische Technische Hochschule AachenInventor: Boris Regaard