Patents by Inventor Christian Wulff
Christian Wulff has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230352701Abstract: A method for producing a membrane electrode assembly for a fuel cell includes providing a first component of the membrane electrode assembly as part of a continuous material web which passes through a plurality of processing stations and connecting a second component of the membrane electrode assembly to the first component by a firmly bonded connection.Type: ApplicationFiled: July 7, 2023Publication date: November 2, 2023Inventors: Oliver BIHLMAIER, Johannes DEUTSCH, Alexandra FOTIOU, Wolfgang HANSEN, Volker HORINEK, Bettina JANSON, Marco MRAZ, Eyuep Akin OEZDENIZ, Uwe PFISTER, Leoni PRETZEL, Helmut RAUNER, Nico RIEDE, Tim RUECKERT, Dominik SCHUHMACHER, Holger SEIBT, Harald TOBER, Christian WULFF, Karl ZIMMERER
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Patent number: 11742497Abstract: A method for producing a membrane electrode assembly for a fuel cell includes providing a first component of the membrane electrode assembly as part of a continuous material web which passes through a plurality of processing stations and connecting a second component of the membrane electrode assembly to the first component by a firmly bonded connection.Type: GrantFiled: July 23, 2016Date of Patent: August 29, 2023Assignee: CELLCENTRIC GMBH & CO. KGInventors: Oliver Bihlmaier, Johannes Deutsch, Alexandra Fotiou, Wolfgang Hansen, Volker Horinek, Bettina Janson, Marco Mraz, Eyuep Akin Oezdeniz, Uwe Pfister, Leoni Pretzel, Helmut Rauner, Nico Riede, Tim Rueckert, Dominik Schuhmacher, Holger Seibt, Harald Tober, Christian Wulff, Karl Zimmerer
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Publication number: 20180241054Abstract: The invention relates to a method for producing a membrane electrode assembly (12) for a fuel cell, wherein at least one first component (18) of the membrane electrode assembly (12) is provided as part of a continuous material web which passes through a plurality of processing stations. At least one second component (26) of the membrane electrode assembly is connected to the at least one first component. At least one adhesive is applied to at least one of the components (18, 26), said adhesive causing the connection of the at least one first component (18) to the at least one second component (26). Furthermore, the invention relates to a device (10) for producing a membrane electrode assembly (12).Type: ApplicationFiled: July 23, 2016Publication date: August 23, 2018Applicant: Daimler AGInventors: Oliver BIHLMAIER, Johannes DEUTSCH, Alexandra FOTIOU, Wolfgang HANSEN, Volker HORINEK, Bettina JANSON, Marco MRAZ, Eyuep Akin OEZDENIZ, Uwe PFISTER, Leoni PRETZEL, Helmut RAUNER, Nico RIEDE, Tim RUECKERT, Dominik SCHUHMACHER, Holger SEIBT, Harald TOBER, Christian WULFF, Karl ZIMMERER
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Patent number: 9496477Abstract: There is provided a method for producing a substrate (600) suitable for supporting an elongated superconducting element, wherein, e.g., a deformation process is utilized in order to form disruptive strips in a layered solid element, and where etching is used to form undercut volumes (330, 332) between an upper layer (316) and a lower layer (303) of the layered solid element. Such relatively simple steps enable providing a substrate which may be turned into a superconducting structure, such as a superconducting tape, having reduced AC losses, since the undercut volumes (330, 332) may be useful for separating layers of material. In a further embodiment, there is placed a superconducting layer on top of the upper layer (316) and/or lower layer (303), so as to provide a superconducting structure with reduced AC losses.Type: GrantFiled: May 17, 2013Date of Patent: November 15, 2016Assignee: Danmarks Tekniske UniversitetInventor: Anders Christian Wulff
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Publication number: 20160276067Abstract: There is provided a method for producing a substrate suitable for supporting an elongated superconducting element, wherein one or more elongated strips of masking material are placed on a solid element (202) so as to form one or more exposed elongated areas being delimited on one or two sides by elongated strip of masking material, and placing filling material on the solid element so that each exposed elongated area within the one or more exposed elongated areas is covered by a portion of filling material (318a-c) where each portion of filling material also covers at least a portion of the adjacent elongated strip of masking material and subsequently removing the one or more elongated strips of masking material so as to form one or more corresponding undercut volumes, where each undercut volume within the one or more undercut volumes is formed along a portion of filling material and between the portion of filling material and the solid element.Type: ApplicationFiled: November 20, 2014Publication date: September 22, 2016Inventor: Anders Christian Wulff
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Patent number: 9387656Abstract: A method for connecting component parts (1, 2, 3) of a fuel cell. A photochemically curable adhesive (5) is applied in liquid form at least regionally to at least one component part (1, 2, 3) of the fuel cell, is photochemically pre-cured, is brought into contact with at least one further component part (1, 2, 3) of the fuel cell and is cured. The photochemically curable adhesive (5) is photochemically pre-cured to differing degrees in at least two component part regions (B1, B2) of the component part (1, 2, 3). Furthermore, an apparatus for connecting component parts (1, 2, 3) of a fuel cell.Type: GrantFiled: July 11, 2013Date of Patent: July 12, 2016Assignee: Daimler AGInventor: Christian Wulff
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Publication number: 20150210052Abstract: The invention relates to a A method for connecting component parts (1, 2, 3) of a fuel cell. A photochemically curable adhesive (5) is applied in liquid form at least regionally to at least one component part (1, 2, 3) of the fuel cell, is photochemically pre-cured, is brought into contact with at least one further component part (1, 2, 3) of the fuel cell and is cured. The photochemically curable adhesive (5) is photochemically pre-cured to differing degrees in at least two component part regions (B1, B2) of the component part (1, 2, 3). Furthermore, an apparatus for connecting component parts (1, 2, 3) of a fuel cell.Type: ApplicationFiled: July 11, 2013Publication date: July 30, 2015Inventor: Christian Wulff
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Publication number: 20150087524Abstract: There is provided a method for producing a substrate (600) suitable for supporting an elongated superconducting element, wherein, e.g., a deformation process is utilized in order to form disruptive strips in a layered solid element, and where etching is used to form undercut volumes (330, 332) between an upper layer (316) and a lower layer (303) of the layered solid element. Such relatively simple steps enable providing a substrate which may be turned into a superconducting structure, such as a superconducting tape, having reduced AC losses, since the undercut volumes (330, 332) may be useful for separating layers of material. In a further embodiment, there is placed a superconducting layer on top of the upper layer (316) and/or lower layer (303), so as to provide a superconducting structure with reduced AC losses.Type: ApplicationFiled: May 17, 2013Publication date: March 26, 2015Inventor: Anders Christian Wulff
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Patent number: 8085898Abstract: The present invention relates to a dual energy X-ray apparatus and method for osteoporosis assessment and monitoring. The present invention takes a bone densitometry reading of a patient's wrist to assess osteoporosis and monitor bone loss condition by repeat measurements along with therapy. The bone densitometry system has an X-ray source, dual energy detectors, an arm-rest to place the patient's arm, a motion system to move the source-detector gantry along the patient's forearm, and a computer with a database to archive the wrist image, calculate the bone mineral density, maintain a history of patient information, and generate patient history reports.Type: GrantFiled: May 8, 2009Date of Patent: December 27, 2011Assignee: Osteometer Meditech, Inc.Inventors: Neeraj Agrawal, Manoocher Mansouri Aliabadi, Christian Wulff, Kahn-Tze Andrew Lim
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Publication number: 20110154849Abstract: A regulator of refrigerant for a refrigeration circuit with flooded evaporator. The refrigerant can be distributed to many separate evaporator channels. The flow of refrigerant can be changed so that the evaporator and condenser change functions. This provides the opportunity for a fast defrosting of the evaporator or the evaporator can alternately be applied for cooling and heating. The regulator functions independently of the gravitational field and therefore it can be applied for air-conditioning systems in aeroplane and space crafts. The regulator is without movable parts. It has two throttling steps, e.g. two capillary tubes separated by a suction-gas heat exchanger. It requires neither adjustment nor maintenance and therefore it can be placed at inaccessible places or it can be embedded completely in insulation foam.Type: ApplicationFiled: September 13, 2009Publication date: June 30, 2011Inventor: Lars Christian Wulff Zimmermann
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Publication number: 20100284515Abstract: The present invention relates to a dual energy X-ray apparatus and method for osteoporosis assessment and monitoring. The present invention takes a bone densitometry reading of a patient's wrist to assess osteoporosis and monitor bone loss condition by repeat measurements along with therapy. The bone densitometry system has an X-ray source, dual energy detectors, an arm-rest to place the patient's arm, a motion system to move the source-detector gantry along the patient's forearm, and a computer with a database to archive the wrist image, calculate the bone mineral density, maintain a history of patient information, and generate patient history reports.Type: ApplicationFiled: May 8, 2009Publication date: November 11, 2010Inventors: Neeraj Agrawal, Manoocher Mansouri Aliabadi, Christian Wulff, Kahn-Tze Andrew Lim
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Publication number: 20100135458Abstract: The present invention relates to a dual energy X-ray apparatus and method for osteoporosis assessment and monitoring. The present invention takes a bone densitometry reading of a patient's wrist to assess osteoporosis and monitor bone loss condition by repeat measurements along with therapy. The bone densitometry system has an X-ray source, dual energy detectors, an arm-rest to place the patient's arm, a motion system to move the source-detector gantry along the patient's forearm, and a computer with a database to archive the wrist image, calculate the bone mineral density, maintain a history of patient information, and generate patient history reports.Type: ApplicationFiled: November 19, 2009Publication date: June 3, 2010Inventors: Neeraj Agrawal, Manoocher Mansouri Aliabadi, Christian Wulff, Kahn-Tze Andrew Lim
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Patent number: 7666903Abstract: The invention relates to reaction products of 2-propylheptanol with 1-halo-2,3-epoxypropanes and 1-hydroxy-2,3-epoxypropane (glycidol), to methods for their production, and to their use as cosurfactants, cleaning surfactants or thickeners.Type: GrantFiled: October 1, 2003Date of Patent: February 23, 2010Assignee: BASF AktiengesellschaftInventors: Christian Wulff, Ralf Noerenberg, Michael Kluge, Norbert Wagner
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Patent number: 7608653Abstract: The present invention relates to a coating material formulation comprising a mixture comprising as component a1 at least one surfactant and as component a2 at least one compound corresponding to the general formula (I) R1—O—(CH2—CHR2—O)n—(CH2—CH2—O)m—R3??(I) in which R1 is phenyl or substituted phenyl, C4-C14 alkyl, R2 is C1-C8 alkyl, R3 is hydrogen, C1-C6 alkyl, benzoyl, acetyl, acryloyl, methacryloyl, n has an average value of 0 to 10, m has an average value of 1 to 10, where n+m?10 and m>n, and the alkylene oxide structural units, which are different if appropriate, can be distributed randomly or arranged in blocks, 1%-95% by weight of film-forming binders and resins, 0%-80% by weight of fillers, 0%-40% by weight of pigments, 0%-20% by weight of additives and 0%-90% by weight of organic solvents and/or water, the sum of the weight percentages being 100% by weight, and to the use of the mixture of the invention for lowering the surface tension in a coating material by addition to the coating materialType: GrantFiled: July 15, 2005Date of Patent: October 27, 2009Assignee: BASF AktiengesellschaftInventors: Christian Wulff, Hans-Peter Seelmann-Eggebert, Susanne Stutz, Guenter Oetter
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Patent number: 7456138Abstract: The invention relates to a method of reducing the inhalation toxicity of functional fluids by incorporating into a functional fluid an effective amount of copolymer which is obtainable by copolymerizing etheylene oxide, propylene oxide and/or butylenes oxide with an initiator monool or diol, said copolymer having a degree of unsaturation of less than about 0.01 meq/g.Type: GrantFiled: May 14, 2004Date of Patent: November 25, 2008Assignee: BASF AktiengesellschaftInventors: John V. Sherman, Ludwig Voelkel, Marc Walter, Christian Wulff, Michael Stoesser, Siegbert Brand
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Patent number: 7371716Abstract: The alkoxylate mixtures comprise alkoxylates of the formula (I) C5H11CH(C3H7)CH2O(A)n(B)mH ??(I) where A is ethyleneoxy, B is C3-10-alkyleneoxy or mixtures thereof, where groups A and B may be present in random distribution, alternately or in the form of two or more blocks in any order, n is a number from 0 to 30, m is a number from 0 to 20 n+m is at least 1 where 70 to 99% by weight of alkoxylates A1 in which C5H11 has the meaning n-C5H11, and 1 to 30% by weight of alkoxylates A2 in which C5H11 has the meaning C2H5CH(CH3)CH2 and/or CH3CH(CH3)CH2CH2, are present in the mixture.Type: GrantFiled: April 25, 2003Date of Patent: May 13, 2008Assignee: BASF AktiengesellschaftInventors: Alfred Ruland, Martin Scholtissek, Juergen Tropsch, Roland Boehn, Claus Hackmann, Christian Wulff
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Patent number: 7348460Abstract: The present invention relates to a process for preparing at least one alkoxylate, which comprises bringing at least one alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, pentylene oxide and decene oxide into contact with at least one starter compound in the presence of at least one double metal cyanide compound, with the reaction being carried out at a temperature of from 130° C. to 155° C., to the alkoxylates, in particular ethoxylates, themselves and to the use of such ethoxylates as emulsifier, foam regulator or as wetting agents for hard surfaces.Type: GrantFiled: April 25, 2003Date of Patent: March 25, 2008Assignee: BASF AktiengesellschaftInventors: Christian Wulff, Michael Stoesser, Georg Heinrich Grosch, Kai-Uwe Baldenius, Edward Bohres
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Patent number: 7340920Abstract: A Thermostatic Flow Controller composed of two capillary tubes and a tube form receiver, placed in thermal contact with the suction line. It makes a robust, hermitic closed device, without any moveable parts, no need for adjustment or service and therefor suited for inaccessible placement—for instance encapsulated in isolation foam. The flow of refrigerant to the evaporator is controlled by the pressure in the receiver—and the pressure in the receiver is controlled by the need for refrigerant in the evaporator. This balance ensures that the evaporator is flooded, and thereby exploited 100%—for all kind of charges. The invention is suited for small household freezers and refrigerators. For a small extra cost, it replaces the traditional capillary tube, and makes these devices working optimal on both cold and warm locations, and makes the manufacturing more easy because the amount of refrigerant is no longer critical as it is for traditional capillary tubes.Type: GrantFiled: September 16, 2004Date of Patent: March 11, 2008Inventor: Lars Christian Wulff Zimmermann
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Patent number: 7332465Abstract: The present invention relates to compositions at least comprising one alkoxylate of the formula RO(A)n(B)mH, to processes for the preparation of such compositions, in particular in the presence of double-metal cyanide compounds as catalyst, and their use as emulsifier, foam regulator or as wetting agents for hard surfaces. Moreover, the present invention also relates to the use of such compositions in detergents and surfactant formulations.Type: GrantFiled: April 25, 2003Date of Patent: February 19, 2008Assignee: BASF AktiengesellschaftInventors: Christian Wulff, Kai-Uwe Baldenius, Martin Scholtissek, Michael Stoesser, Norbert Wagner, Edward Bohres
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Publication number: 20080017828Abstract: The present invention relates to aqueous coolants having vapor-space corrosion inhibiting properties, in particular for the run-in phase of internal combustion engines, after which the coolant is drained (engine run-in fluids), containing at least one ammonium salt of phthalic acid monoamides of the following formula (I), where R1 and R2 may be identical or different and are hydrogen or a linear or branched, cyclic or acyclic C1-C2o-alkyl radical and A+ is an ammonium cation.Type: ApplicationFiled: July 24, 2007Publication date: January 24, 2008Applicant: BASF AktiengesellschaftInventors: Bernd WENDEROTH, Ladislaus Meszaros, Stefan Dambach, Hubert Rehberger, Christian Wulff