Patents by Inventor Alexander Schroeder
Alexander Schroeder 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: 20240086386Abstract: The present disclosure provides more efficient techniques for removing a host from a multi-host database system. An instruction to remove a host system may be received. In response, a determination of whether the first host system does or does not store any source tables is made based on a host-type identifier for the host system. This determination may not require obtaining landscape information for each of the hosts in the database system. If the host system stores replica tables and does not store source tables, those replica tables may be dropped based on the determination that the first host system does not store any source tables. As such, in cases where table redistribution is not needed the landscape information is not obtained, thereby making the host removal process more efficient.Type: ApplicationFiled: September 8, 2022Publication date: March 14, 2024Inventors: Hans-Joerg Leu, Dan Ding, Srinivas Gajjalakonda, Fei Qiu, Carsten Mueller, Alexander Schroeder
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Patent number: 11913568Abstract: A method for determining a switching state of a valve that is actuated by a coil, wherein the method includes: respectively ascertaining a current flowing through the coil and a voltage applied to the coil at several times which follow one another with a prespecified time interval, calculating an inductance variable of the coil based on the currents, the voltage and the time interval, and determining the switching state based on the inductance variable. Also disclosed is a solenoid valve assembly.Type: GrantFiled: October 9, 2019Date of Patent: February 27, 2024Assignee: Continental Teves AG & Co. oHGInventors: Bartosz Maj, Holger Kollmann, Tomislav Milic, Alexander Schönbohm, Ralf Schröder, Marc Lenz, Marcus Bletz, Jurij Schmidt, Dieter Dinkel
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Patent number: 11829337Abstract: Methods, systems, and computer-readable storage media for executing a first application on a source system during production use of the source system, providing a second application on a target system, during the production use of the source system: migrating data from the source system to the target system based on a catalog delta, and a data delta, each of the catalog delta, and the data delta being periodically determined, and determining whether a completion time exceeds a threshold time, the completion time being determined based on a last-determined data delta, and, in response to determining that the completion time does not exceed the threshold time: halting production use of the source system, and completing migration to the target system based on the last-determined data delta.Type: GrantFiled: November 16, 2016Date of Patent: November 28, 2023Assignee: SAP SEInventors: Saskia Kurz, Alexander Schroeder, Thomas Loetzer, Marco Paskamp, Kerstin Welk, Martin Fei, Enno Folkerts, Christoph Bautz, Tilo Heinrich
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Patent number: 10316007Abstract: A continuous process for preparing propylene oxide proceeds by (a) reacting propene with hydrogen peroxide in a reaction apparatus in the presence acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B; (b) separating propylene oxide from S0, obtaining stream S1 containing acetonitrile, water and B; (c) dividing S1 into streams S2 and S3; (d) subjects S3 to vapor-liquid fractionation in a first fractionation unit, obtaining vapor fraction stream S4a being depleted, relative to S3, of at least one of B and obtaining liquid bottoms stream S4b, and subjecting at least part of vapor fraction stream S4a to vapor-liquid fractionation in a second fractionation unit, obtaining vapor fraction stream S4c and liquid bottoms stream S4 being depleted, relative to S4a, of at least one of B; (e) recycling at least a portion of S4 to (a).Type: GrantFiled: October 27, 2015Date of Patent: June 11, 2019Assignees: BASF SE, DOW GLOBAL TECHNOLOGIES LLCInventors: Joaquim Henrique Teles, Dominic Riedel, Bianca Seelig, Philip Kampe, Markus Weber, Alexander Schroeder, Andrei-Nicolae Parvulescu, Ulrich Mueller, Daniel Urbanczyk, Meinolf Weidenbach, Werner J. Witzl, Holger Baer
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Patent number: 10195598Abstract: The invention relates to process for the regeneration of a catalyst comprising a titanium containing zeolite as catalytically active material comprising a stage comprising introducing a feed stream comprising propene, hydrogen peroxide or a hydrogen peroxide source, and an organic solvent into a reactor containing a catalyst comprising the titanium containing zeolite, subjecting the feed stream in the reactor to epoxidation conditions in the presence of the catalyst, removing a product steam comprising propylene oxide and the organic solvent from the reactor, stopping introducing the feed stream, washing the catalyst with a liquid aqueous system and calcining the washed catalyst.Type: GrantFiled: February 12, 2016Date of Patent: February 5, 2019Assignees: BASF SE, Dow Global Technologies LLCInventors: Dominic Riedel, Joaquim Henrique Teles, Daniel Urbanczyk, Ulrike Wegerle, Luise Spiske, Andrei-Nicolae Parvulescu, Alexander Schroeder, Ulrich Mueller, Meinolf Weidenbach, Werner J. Witzl
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Patent number: 10053439Abstract: A catalytic system containing a titanium zeolite of structure type MWW optionally containing zinc and containing at least one of an inorganic potassium salt and an organic potassium salt is provided. The catalyst system is useful in the preparation of propylene oxide.Type: GrantFiled: June 29, 2017Date of Patent: August 21, 2018Assignees: BASF SE, DOW Global Technologies LLCInventors: Dominic Riedel, Joaquim Henrique Teles, Ulrike Wegerle, Andrei-Nicolae Parvulescu, Alexander Schroeder, Luise Spiske, Daniel Urbanczyk, Ulrich Mueller, Werner Witzl, Meinolf Weidenbach
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Publication number: 20180230117Abstract: A continuous process for preparing propylene oxide proceeds by (a) reacting propene with hydrogen peroxide in a reaction apparatus in the presence acetonitrile as solvent, obtaining a stream S0 containg propylene oxide, acetonitrile, water, at least one further componen B; (b) separating propylene oxide from S0, obtaining stream S1 containing acetonitrile, water and B; (c) dividing Sa into streams S2 and S3; (d) subjects S3 to vapor-liquid fractionation in a first fractionation unit, obtaining vapor fraction stream S4a being depleted, relative to S3, of at least one of B and obtaining liquid bottoms stream S4b, and subjecting at least part of vapor fraction stream S4a to vapor-liquid fractionation in a second fractionation unit, obtaining vapor fraction stream S4c and liquid bottoms stream S4 being depleted, relative to S4a, of at least one of B; (e) recycling at least a portion of S4 to (a).Type: ApplicationFiled: October 27, 2015Publication date: August 16, 2018Applicants: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique TELES, Dominic RIEDEL, Bianca SEELIG, Philip KAMPE, Markus WEBER, Alexander SCHROEDER, Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Daniel URBANCZYK, Meinolf WEIDENBACH, Werner WITZL, Holger BAER
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Publication number: 20180137113Abstract: Methods, systems, and computer-readable storage media for executing a first application on a source system during production use of the source system, providing a second application on a target system, during the production use of the source system: migrating data from the source system to the target system based on a catalog delta, and a data delta, each of the catalog delta, and the data delta being periodically determined, and determining whether a completion time exceeds a threshold time, the completion time being determined based on a last-determined data delta, and, in response to determining that the completion time does not exceed the threshold time: halting production use of the source system, and completing migration to the target system based on the last-determined data delta.Type: ApplicationFiled: November 16, 2016Publication date: May 17, 2018Inventors: Saskia Kurz, Alexander Schroeder, Thomas Loetzer, Marco Paskamp, Kerstin Welk, Martin Fei, Enno Folkerts, Christoph Bautz, Tilo Heinrich
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Patent number: 9943838Abstract: The present invention relates to a process for the regeneration of a catalyst comprising a titanium-containing zeolite, said catalyst having been used in a process for the preparation of an olefin oxide and having phosphate deposited thereon, said process for the regeneration comprising the steps: (a) separating the reaction mixture from the catalyst, (b) washing the catalyst obtained from (a) with liquid aqueous system; (c) optionally drying the catalyst obtained from (b) in a gas stream comprising an inert gas at a temperature of less than 300° C.; (d) calcining the catalyst obtained from (c) in a gas stream comprising oxygen at a temperature of at least 300° C.Type: GrantFiled: July 16, 2014Date of Patent: April 17, 2018Assignees: BASF SE, Dow Global Technologies LLCInventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Joaquim Henrique Teles, Bianca Seelig, Philip Kampe, Markus Weber, Peter Resch, Christian Bartosch, Dominic Riedel, Daniel Urbanczyk, Alexander Schroeder, Ulrike Wegerle
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Publication number: 20180036723Abstract: The invention relates to process for the regeneration of a catalyst comprising a titanium containing zeolite as catalytically active material comprising a stage comprising introducing a feed stream comprising propene, hydrogen peroxide or a hydrogen peroxide source, and an organic solvent into a reactor containing a catalyst comprising the titanium containing zeolite, subjecting the feed stream in the reactor to epoxidation conditions in the presence of the catalyst, removing a product steam comprising propylene oxide and the organic solvent from the reactor, stopping introducing the feed stream, washing the catalyst with a liquid aqueous system and calcining the washed catalyst.Type: ApplicationFiled: February 12, 2016Publication date: February 8, 2018Applicants: BASF SE, Dow Global Technologies LLCInventors: Dominic RIEDEL, Joaquim Henrique TELES, Daniel URBANCZYK, Ulrike WEGERLE, Luise SPISKE, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Ulrich MUELLER, Meinolf WEIDENBACH, Werner J. WITZL
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Publication number: 20170298034Abstract: A catalytic system containing a titanium zeolite of structure type MWW optionally containing zinc and containing at least one of an inorganic potassium salt and an organic potassium salt is provided. The catalyst system is useful in the preparation of propylene oxide.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Applicants: BASF SE, DOW Global Technologies LLCInventors: Dominic RIEDEL, Joaquim Henrique TELES, Ulrike WEGERLE, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Luise SPISKE, Daniel URBANCZYK, Ulrich MUELLER, Werner WITZL, Meinolf Weidenbach
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Patent number: 9738616Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt; (ii) passing the feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one potassium salt, optionally propene, and optionally pane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one potassium salt, optionally propene, and optionally propane.Type: GrantFiled: July 16, 2014Date of Patent: August 22, 2017Assignees: BASF SE, Dow Global Technologies LLCInventors: Dominic Riedel, Joaquim Henrique Teles, Ulrike Wegerle, Andrei-Nicolae Parvulescu, Alexander Schroeder, Luise Spiske, Daniel Urbanczyk, Ulrich Mueller, Werner Witzl, Meinolf Weidenbach
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Patent number: 9732054Abstract: A continuous process for the preparation of propylene oxide, comprising (a) reacting propene, optionally admixed with propane, with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B, optionally propene and optionally propane, wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile and wherein the decadic logarithm of the octanol-water partition coefficient (log Kow) of the at least one component B is greater than zero; (b) separating propylene oxide from S0, obtaining a stream S1 containing acetonitrile, water and the at least one further component B; (c) dividing S1 into two streams S2 and S3; (d) subjecting S3 to a vapor-liquid fractionation in a fractionation unit, obtaining a vapor fraction stream S4 being depleted of the at least one component B; (e) recycling at least a portion of S4, optionally afterType: GrantFiled: August 24, 2016Date of Patent: August 15, 2017Assignees: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique Teles, Dominic Riedel, Bianca Seelig, Philip Kampe, Daniel Urbanczyk, Markus Weber, Alexander Schroeder, Andrei-Nicolae Parvulescu, Ulrich Mueller, Meinolf Weidenbach, Werner J. Witzl, Holger Baer
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Patent number: 9720949Abstract: Client-side partition-aware batch insert operations are presented. For example, a server generates partition metadata, which is provided to a client. The client uses the partition metadata to determine the database nodes to which to send batch insert requests. For example, the client divides batch insert data, such as records for a partitioned table, among multiple database nodes having partitions of the table. The client issues batch insert requests to the respective database nodes for execution. When executed by the database nodes, batch insert operations can be performed in parallel.Type: GrantFiled: May 6, 2014Date of Patent: August 1, 2017Assignee: SAP SEInventors: Chul Won Lee, Juchang Lee, Alexander Schroeder, Myunggon Park, Sang Kyun Cha
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Patent number: 9688648Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream.Type: GrantFiled: July 16, 2014Date of Patent: June 27, 2017Assignees: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique Teles, Bianca Seelig, Dominic Riedel, Philip Kampe, Daniel Urbanczyk, Markus Weber, Ulrich Mueller, Andrei-Nicolae Parvulescu, Alexander Schroeder, Meinolf Weidenbach, Werner Witzl
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Publication number: 20160362387Abstract: A continuous process for the preparation of propylene oxide, comprising (a) reacting propene, optionally admixed with propane, with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B, optionally propene and optionally propane, wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile and wherein the decadic logarithm of the octanol-water partition coefficient (log Kow) of the at least one component B is greater than zero; (b) separating propylene oxide from S0, obtaining a stream S1 containing acetonitrile, water and the at least one further component B; (c) dividing S1 into two streams S2 and S3; (d) subjecting S3 to a vapor-liquid fractionation in a fractionation unit, obtaining a vapor fraction stream S4 being depleted of the at least one component B; (e) recycling at least a portion of S4, optionally afterType: ApplicationFiled: August 24, 2016Publication date: December 15, 2016Applicants: BASF SE, DOW GLOBAL TECHNOLOGIES LLCInventors: Joaquim H. Teles, Dominic Riedel, Bianca Seelig, Philip Kampe, Daniel Urbanczyk, Markus Weber, Alexander Schroeder, Andrei-Nicolae Parvulescu, Ulrich Mueller, Meinolf Weidenbach, Werner Witzl, Holger Baer
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Publication number: 20160332152Abstract: The present invention relates to a process for the regeneration of a catalyst comprising a titanium-containing zeolite, said catalyst having been used in a process for the preparation of an olefin oxide and having phosphate deposited thereon, said process for the regeneration comprising the steps: (a) separating the reaction mixture from the catalyst, (b) washing the catalyst obtained from (a) with liquid aqueous system; (c) optionally drying the catalyst obtained from (b) in a gas stream comprising an inert gas at a temperature of less than 300° C.; (d) calcining the catalyst obtained from (c) in a gas stream comprising oxygen at a temperature of at least 300° C.Type: ApplicationFiled: July 16, 2014Publication date: November 17, 2016Applicants: BASF SE, DOW GLOBAL TECHNOLOGIES LLCInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Joaquim Henrique TELES, Bianca SEELIG, Philip KAMPE, Markus WEBER, Peter RESCH, Christian BARTOSCH, Dominic RIEDEL, Daniel URBANCZYK, Alexander SCHROEDER, Ulrike WEGERLE
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Publication number: 20160185741Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream.Type: ApplicationFiled: July 16, 2014Publication date: June 30, 2016Applicants: BASF SE, DOW GLOBAL TECHNOLOGIES LLCInventors: Joaquim TELES, Bianca SEELIG, Dominic RIEDEL, Philip KAMPE, Daniel URBANCZYK, Markus WEBER, Ulrich MUELLER, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Meinolf WEIDENBACH, Werner WITZL
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Publication number: 20160176835Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt; (ii) passing the feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one potassium salt, optionally propene, and optionally pane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one potassium salt, optionally propene, and optionally propane.Type: ApplicationFiled: July 16, 2014Publication date: June 23, 2016Applicants: BASF SE, DOW Global Technologies LLCInventors: Dominic RIEDEL, Joaquim Henrique TELES, Ulrike WEGERLE, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Luise SPISKE, Daniel URBANCZYK, Ulrich MUELLER, Werner WITZL, Meinolf Weidenbach
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Patent number: 9336284Abstract: A system includes reception of a first query from a client device at a first database node of a database instance comprising two or more database nodes, determination of a second database node of the two or more database nodes associated with the first query, compilation of the first query at the first database node to generate first compiled code, and transmission of the first compiled code and a first identifier of the second database node from the first database node to the client device.Type: GrantFiled: June 17, 2014Date of Patent: May 10, 2016Assignee: SAP SEInventors: Juchang Lee, Jaeyun Noh, Chulwon Lee, Michael Muehle, Alexander Schroeder, Marco Paskamp, Sang Kyun Cha