Patents by Inventor Andreas Walter

Andreas Walter 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: 20210163685
    Abstract: An improved photosensitizer for a photocathode comprises an oligomeric or polymeric chromphore absorbing, as an ensemble, light at (a) wavelengths at or greater than 420 nm that includes at least 3 identical or different suitable monomeric chromophore units carrying at least two substituents each comprising at least one alkylene, alkenylene and/or alkynylene chain having a chain length of at least 3 carbon atoms, those substituents being terminated by thiol groups, wherein the oligomeric or polymeric chromphore has a disulfide bond between each of the chromophores. A photocathode comprising the photosensitzer is useful for the reduction of water-soluble chemicals in oxidized forms, including protons, with the aid of visible light in a system comprising the photocathode and a photoanode or any other anode or source of electrons. A method for reducing chemicals soluble in aqueous media in oxidized forms, including protons, in aqueous solutions by means of the photocathode is also disclosed.
    Type: Application
    Filed: December 15, 2018
    Publication date: June 3, 2021
    Inventors: Oyewole TAYE SALAMI, Sigrid OBENLAND, Christian FISCHER, Thorben SCHLUECKER, Andreas WALTER
  • Patent number: 11024864
    Abstract: An assembly device may be employed to vertically stack a fuel cell stack having alternating membrane-electrode units and bipolar plates. The assembly device may include a base plate, a cover plate, and connecting pieces positioned at each of two end faces of the base plate and cover plate. A substantially cuboidal assembly chamber may be defined inside the assembly device by a plurality of vertically oriented locating strips, in order, via the locating strips, to position the membrane-electrode units and bipolar plates relative to one another during stacking. The assembly device may further include a drive for synchronous displacement of the locating strips.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: June 1, 2021
    Assignees: THYSSENKRUPP SYSTEM ENGINEERING GMBH, THYSSENKRUPP AG
    Inventor: Andreas Walter
  • Patent number: 11022370
    Abstract: A belt drier arrangement for drying an aqueous polymer gel and for comminuting the dried polymer gel to give dried polymer particles, having: a belt drier having a drier setup and a conveyor belt for receiving and for drying the aqueous polymer gel to give a dry cake or fragments on a receiving surface of the conveyor belt, and a comminution arrangement, disposed downstream of the drier setup in product flow direction, for comminution of the dried polymer gel of the dry cake or fragments to give dried comminuted polymer particles. The comminution arrangement has a comminutor in the form of a milling drum which is disposed with an upper working line of a working edge of the milling drum at the level of or above a receiving surface of a conveyor belt, for mill processing of the dry cake or of the fragments, where the milling drum is designed to eject comminuted dried polymer particles of the dry cake or of the fragments in the downward direction.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: June 1, 2021
    Assignee: BASF SE
    Inventors: Andrea Karen Bennett, Paul Walter McCormack, Mark Elliott
  • Publication number: 20210138441
    Abstract: The present invention provides hydrothermally stable crystalline aluminosilicate zeolites with a CHA framework type, wherein the zeolite has a total proton content of less than 2 mmol per gram. The zeolite may comprise 0.1 to 10 wt.-% of at least one transition metal, calculated as the respective oxide and based on the total weight of the zeolite. It may furthermore comprise at least one alkali or alkaline earth metal in a concentration of 0 to 2 wt.-%, calculated as the respective metal and based on the total weight of the zeolite. The invention furthermore provides a one-pot synthesis method for making the alumino-silicate zeolites with a CHA framework type. An aqueous reaction mixture comprising a tetraethylammonium compound, a silica source, at least one alkali or alkaline earth metal hydroxide, a zeolite of the faujasite framework type and Cu-tetraethylenepentamine are mixed, homogenized and heated, and finally, the product is recovered.
    Type: Application
    Filed: May 13, 2018
    Publication date: May 13, 2021
    Inventors: Elke Jane June Verheyen, Sreeprasanth Pulinthanathu Sree, Sam Smet, Andreas Jan Hoffmann, Michiel De Prins, Johan Adriaan Martens, Leen Van Tendeloo, Frank-Walter Schuetze
  • Patent number: 10920322
    Abstract: The present invention relates to a method for directly depositing palladium onto a non-activated surface of a gallium nitride semiconductor, the use of an acidic palladium plating bath (as defined below) for directly depositing metallic palladium or a palladium alloy onto a non-activated surface of a doped or non-doped gallium nitride semiconductor, and a palladium or palladium alloy coated, doped or non-doped gallium nitride semiconductor.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: February 16, 2021
    Assignee: Atotech Deutschland GmbH
    Inventor: Andreas Walter
  • Publication number: 20210005295
    Abstract: A patient recruitment system, in particular for clinical studies, has at least one database environment comprising at least one database module that is configured at least to store in a patient database at least patient data records containing at least one course of treatment of at least one patient, has at least one patient recruitment server comprising at least one patient recruitment module that is configured to search and at least compare with at least one recruitment feature, data records, in particular courses of treatment, and has a data transport unit for a data transfer, in particular of at least one course of treatment, between the database environment and the patient recruitment server, the data transport unit comprises a restriction module, which restricts the data transfer to outbound connections originating from the database environment.
    Type: Application
    Filed: August 4, 2017
    Publication date: January 7, 2021
    Inventors: Andreas WALTER, Dominik ARONSKY, Bernhard BODENMANN, Lukasz STRZEPKA, Ulf CLAESSON
  • Publication number: 20200350840
    Abstract: A method for determining an offset of an angular position encoder is associated with a rotor of an electric machine, wherein a reference offset of a reference angular position encoder of a reference electric machine is known at a reference rotational speed and a reference current with a reference phase angle and a reference absolute value. The method includes the steps of applying a current having the reference absolute value; setting a phase angle of the current to achieve the reference rotational speed; comparing the phase angle with the reference phase angle and the reference offset; and determining the offset on the basis of this comparison.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Bassel SAHHARY, Andreas WALTER
  • Publication number: 20200300237
    Abstract: A motorized medical suction pump has a pump assembly for generating an underpressure, a pump assembly carrier for supporting the pump assembly, and a seat for receiving an energy accumulator. The pump assembly arranged in the pump assembly carrier defines a first longitudinal axis, and the seat defines a second longitudinal axis. The pump assembly carrier forms the seat. The second longitudinal axis extends at an angle to the first longitudinal axis. This suction pump is small and compact and has good sound damping.
    Type: Application
    Filed: November 9, 2018
    Publication date: September 24, 2020
    Inventors: Regina Marbet, Marcel Muther, Daniela Käppeli, Andreas Walter
  • Publication number: 20200249054
    Abstract: Method for determining a measuring offset of a rotor position sensor (2) assigned to a rotor (3) of an electric machine (5) comprising stator windings that are supplied by an inverter (6) converting a voltage at a DC link capacitor (7) into an AC current, wherein a candidate value for the measuring offset is determined, comprising the following steps: —controlling a power unit (9) of the inverter (6) to provide the current based on rotor position information (19) measured by the rotor position sensor (2) to the stator windings such that the DC link capacitor (7) of the inverter (6) is actively discharged, —evaluating a plausibility of the candidate value for the measuring offset based on a voltage of the DC link capacitor (7) detected while the power unit (9) is controlled to actively discharge the DC link capacitor (7), and —providing the candidate value as determined measuring offset, if a result of the evaluation is positive.
    Type: Application
    Filed: December 19, 2018
    Publication date: August 6, 2020
    Inventors: Bassel Sahhary, Andreas Walter
  • Publication number: 20200211715
    Abstract: A method for recruiting patients for a study, in particular for at least one clinical study, includes at least one matching step that involves at least one patient parameter of at least one patient, stored on a patient data server, being matched, in a computerized manner, with at least one recruitment parameter of at least one study, stored on a study data server, and at least one rating step that involves at least one suitability parameter of a suitability of the patient for the study being determined, in a computerized manner, on the basis of the patient parameter and the recruitment parameter and stored on at least one server, in particular a patient recruitment server. In at least one association step at least an association between the patient and the study is made on the basis of the suitability parameter, and at least one piece of association information is stored on at least one server, in particular the patient recruitment server.
    Type: Application
    Filed: June 8, 2017
    Publication date: July 2, 2020
    Inventors: Andreas WALTER, Dominik ARONSKY, Ulf CLAESSON
  • Publication number: 20200036026
    Abstract: An assembly device may be employed to vertically stack a fuel cell stack having alternating membrane-electrode units and bipolar plates. The assembly device may include a base plate, a cover plate, and connecting pieces positioned at each of two end faces of the base plate and cover plate. A substantially cuboidal assembly chamber may be defined inside the assembly device by a plurality of vertically oriented locating strips, in order, via the locating strips, to position the membrane-electrode units and bipolar plates relative to one another during stacking. The assembly device may further include a drive for synchronous displacement of the locating strips.
    Type: Application
    Filed: October 12, 2017
    Publication date: January 30, 2020
    Applicants: THYSSENKRUPP SYSTEM ENGINEERING GMBH, thyssenkrupp AG
    Inventor: Andreas WALTER
  • Publication number: 20200036256
    Abstract: The invention relates to a housing for an electric machine and a method for producing a housing for an electric machine from at least two shell portions which cover at least a portion of the periphery. At least one of the shell portions is produced from a metal sheet by means of at least one shaping operation and the metal sheet is at least partially provided with a plastics material layer prior to the shaping operation.
    Type: Application
    Filed: February 12, 2018
    Publication date: January 30, 2020
    Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AG
    Inventors: Lothar Patberg, Fabian Schongen, Andreas Walter, Philipp Grunden
  • Patent number: 10513780
    Abstract: The invention relates to an aqueous plating bath composition and a method for depositing a palladium layer by electroless plating onto a substrate. The aqueous plating bath composition according to the invention comprises a source for palladium ions, a reducing agent for palladium ions and an unsaturated compound. The aqueous plating bath composition according to the invention has an improved stability against undesired decomposition due to the unsaturated compounds while keeping the deposition rate for palladium at the desired satisfying value. The aqueous plating bath composition has also a prolonged life time. The unsaturated compounds of the invention allow for adjusting the deposition rate to a satisfying range over the bath life time and for electrolessly depositing palladium layers at lower temperatures.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 24, 2019
    Assignee: Atotech Deutschland GmbH
    Inventors: Andreas Walter, Christof Suchentrunk, Thomas Beck, Gerhard Steinberger, Holger Bera, Heiko Brunner, Bernd Froese
  • Patent number: 10385458
    Abstract: The present invention relates to an aqueous plating bath composition and a method for depositing a palladium layer by electroless plating onto a substrate. The aqueous plating bath composition according to the present invention comprises a source for palladium ions, a reducing agent for palladium ions and an aromatic compound. The aqueous plating bath composition has an increased deposition rate for palladium while maintaining bath stability. The aqueous plating bath composition has also a prolonged life time. The aromatic compounds of the present invention allow for adjusting the deposition rate to a constant range over the bath life time and for electrolessly depositing palladium layers at lower temperatures. The aromatic compounds of the present invention activate electroless palladium plating baths having a low deposition rate and reactivate aged electroless palladium plating baths.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 20, 2019
    Assignee: Atotech Deutschland GmbH
    Inventors: Andreas Walter, Katharina Muskulus
  • Patent number: 10378998
    Abstract: A clutch for a motor vehicle with a wear compensation mechanism which includes a sensor element for detecting wear, wherein the sensor element is formed of a plurality of parts, and at least two sensor component parts are rotatably connected to one another.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 13, 2019
    Assignee: ZF Friedrichshafen AG
    Inventors: Andreas Walter, Christian Schmedding
  • Publication number: 20190242017
    Abstract: The present invention relates to a method for directly depositing palladium onto a non-activated surface of a gallium nitride semiconductor, the use of an acidic palladium plating bath (as defined below) for directly depositing metallic palladium or a palladium alloy onto a non-activated surface of a doped or non-doped gallium nitride semiconductor, and a palladium or palladium alloy coated, doped or non-doped gallium nitride semiconductor.
    Type: Application
    Filed: August 21, 2017
    Publication date: August 8, 2019
    Inventor: Andreas WALTER
  • Publication number: 20190093235
    Abstract: The present invention relates to an aqueous plating bath composition and a method for depositing a palladium layer by electroless plating onto a substrate. The aqueous plating bath composition according to the present invention comprises a source for palladium ions, a reducing agent for palladium ions and an aromatic compound. The aqueous plating bath composition has an increased deposition rate for palladium while maintaining bath stability. The aqueous plating bath composition has also a prolonged life time. The aromatic compounds of the present invention allow for adjusting the deposition rate to a constant range over the bath life time and for electrolessly depositing palladium layers at lower temperatures. The aromatic compounds of the present invention activate electroless palladium plating baths having a low deposition rate and reactivate aged electroless palladium plating baths.
    Type: Application
    Filed: December 17, 2015
    Publication date: March 28, 2019
    Inventors: Andreas WALTER, Katharina MUSKULUS
  • Publication number: 20190006922
    Abstract: A positioning device may be used to peripherally position copper rods about a center axis that defines an axial direction. Each of the copper rods may be generally U-shaped and may have a first leg portion and a second leg portion. The positioning device may include a positioning body, a rotary body, locking means, and a rotary drive. Grooves of an outer peripheral surface of the positioning body may receive the first leg portions of the copper rods, which can be locked in place by the locking means. The rotary body may be rotatable about the positioning body and may include guide channels that receive the second leg portions of the copper rods. The rotary drive can cause the rotary body and the positioning body to rotate relative to one another, to pivot the second leg portions inwardly into the grooves of the positioning body.
    Type: Application
    Filed: October 23, 2017
    Publication date: January 3, 2019
    Applicants: THYSSENKRUPP SYSTEM ENGINEERING GMBH, thyssenkrupp AG
    Inventor: Andreas WALTER
  • Patent number: 10143962
    Abstract: The invention relates to a heat exchanger for a refrigerant dryer such as a compressed air refrigerant dryer comprising at least one first inflow surface element, past which a fluid to be dried such as compressed air can flow during operation of the heat exchanger, and comprising at least one second inflow surface element, past which a refrigerant fluid can flow as required during operation of the heat exchanger, wherein the first and second inflow surface elements are or can be coupled at least in some areas to at least one cold store chamber that is provided for filling with a cold accumulator medium, and wherein the first and/or second inflow surface element(s) (is) are connected to at least one heat transfer element which extends into the cold store chamber, e.g. penetrates the cold store chamber.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: December 4, 2018
    Assignee: KAESER KOMPRESSOREN SE
    Inventors: Andreas Förster, Andreas Fredenhagen, Michael Feisthauer, Andreas Walter, Kristian Dering
  • Publication number: 20180340261
    Abstract: The invention relates to an aqueous plating bath composition and a method for depositing a palladium layer by electroless plating onto a substrate. The aqueous plating bath composition according to the invention comprises a source for palladium ions, a reducing agent for palladium ions and a cyanide group containing aromatic compound. The aqueous plating bath composition according to the invention has an improved stability against undesired decomposition due to the cyanide group containing aromatic compounds while keeping the deposition rate for palladium at the desired satisfying value. The aqueous plating bath composition has also a prolonged life time. The cyanide group containing aromatic compounds of the invention allow for adjusting the deposition rate to a satisfying range over the bath life time and for electrolessly depositing palladium layers at lower temperatures.
    Type: Application
    Filed: November 28, 2016
    Publication date: November 29, 2018
    Inventors: Andreas WALTER, Christof SUCHENTRUNK, Thomas BECK, Gerhard STEINBERGER, Holger BERA, Heiko BRUNNER, Sven RÜCKBROD