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).

  • Publication number: 20230352701
    Abstract: 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: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Inventors: 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
  • Patent number: 11742497
    Abstract: 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: Grant
    Filed: July 23, 2016
    Date of Patent: August 29, 2023
    Assignee: CELLCENTRIC GMBH & CO. KG
    Inventors: 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
  • Publication number: 20180241054
    Abstract: 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: Application
    Filed: July 23, 2016
    Publication date: August 23, 2018
    Applicant: Daimler AG
    Inventors: 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
  • Patent number: 9496477
    Abstract: 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: Grant
    Filed: May 17, 2013
    Date of Patent: November 15, 2016
    Assignee: Danmarks Tekniske Universitet
    Inventor: Anders Christian Wulff
  • Publication number: 20160276067
    Abstract: 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: Application
    Filed: November 20, 2014
    Publication date: September 22, 2016
    Inventor: Anders Christian Wulff
  • Patent number: 9387656
    Abstract: 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: Grant
    Filed: July 11, 2013
    Date of Patent: July 12, 2016
    Assignee: Daimler AG
    Inventor: Christian Wulff
  • Publication number: 20150210052
    Abstract: 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: Application
    Filed: July 11, 2013
    Publication date: July 30, 2015
    Inventor: Christian Wulff
  • Publication number: 20150087524
    Abstract: 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: Application
    Filed: May 17, 2013
    Publication date: March 26, 2015
    Inventor: Anders Christian Wulff
  • Patent number: 8085898
    Abstract: 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: Grant
    Filed: May 8, 2009
    Date of Patent: December 27, 2011
    Assignee: Osteometer Meditech, Inc.
    Inventors: Neeraj Agrawal, Manoocher Mansouri Aliabadi, Christian Wulff, Kahn-Tze Andrew Lim
  • Publication number: 20110154849
    Abstract: 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: Application
    Filed: September 13, 2009
    Publication date: June 30, 2011
    Inventor: Lars Christian Wulff Zimmermann
  • Publication number: 20100284515
    Abstract: 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: Application
    Filed: May 8, 2009
    Publication date: November 11, 2010
    Inventors: Neeraj Agrawal, Manoocher Mansouri Aliabadi, Christian Wulff, Kahn-Tze Andrew Lim
  • Publication number: 20100135458
    Abstract: 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: Application
    Filed: November 19, 2009
    Publication date: June 3, 2010
    Inventors: Neeraj Agrawal, Manoocher Mansouri Aliabadi, Christian Wulff, Kahn-Tze Andrew Lim
  • Patent number: 7666903
    Abstract: 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: Grant
    Filed: October 1, 2003
    Date of Patent: February 23, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Wulff, Ralf Noerenberg, Michael Kluge, Norbert Wagner
  • Patent number: 7608653
    Abstract: 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 material
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: October 27, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Wulff, Hans-Peter Seelmann-Eggebert, Susanne Stutz, Guenter Oetter
  • Patent number: 7456138
    Abstract: 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: Grant
    Filed: May 14, 2004
    Date of Patent: November 25, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: John V. Sherman, Ludwig Voelkel, Marc Walter, Christian Wulff, Michael Stoesser, Siegbert Brand
  • Patent number: 7371716
    Abstract: 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: Grant
    Filed: April 25, 2003
    Date of Patent: May 13, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Ruland, Martin Scholtissek, Juergen Tropsch, Roland Boehn, Claus Hackmann, Christian Wulff
  • Patent number: 7348460
    Abstract: 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: Grant
    Filed: April 25, 2003
    Date of Patent: March 25, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Wulff, Michael Stoesser, Georg Heinrich Grosch, Kai-Uwe Baldenius, Edward Bohres
  • Patent number: 7340920
    Abstract: 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: Grant
    Filed: September 16, 2004
    Date of Patent: March 11, 2008
    Inventor: Lars Christian Wulff Zimmermann
  • Patent number: 7332465
    Abstract: 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: Grant
    Filed: April 25, 2003
    Date of Patent: February 19, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Wulff, Kai-Uwe Baldenius, Martin Scholtissek, Michael Stoesser, Norbert Wagner, Edward Bohres
  • Publication number: 20080017828
    Abstract: 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: Application
    Filed: July 24, 2007
    Publication date: January 24, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Bernd WENDEROTH, Ladislaus Meszaros, Stefan Dambach, Hubert Rehberger, Christian Wulff