Patents by Inventor David Ley
David Ley 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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Patent number: 11896930Abstract: The invention includes systems, methods, compositions, and processes for designing, manufacturing, and utilizing carbon dioxide-sequestering substrates that can fully or partially replace natural sand in coastal engineering applications. These engineered substrates can offset demand for scarce native sand resources, while also effecting the conversion of gaseous carbon dioxide to dissolved or solid-phase products thereby offsetting impacts of anthropogenic climate change.Type: GrantFiled: June 5, 2023Date of Patent: February 13, 2024Assignee: PROJECT VESTA, PBCInventors: Stephen Justin Romaniello, Brian David Ley, Margaret Grace Andrews, Nathan Gerard Walworth, Thomas Ishoey, Tom Coxeter Green, Francesc Montserrat, Chloe Sarah Leach, David L. Kriebel, Devon Barnes Cole, Geoffrey Wadsworth Calkins, Douglas Owen Edwards
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Publication number: 20230364554Abstract: The invention includes systems, methods, compositions, and processes for designing, manufacturing, and utilizing carbon dioxide-sequestering substrates that can fully or partially replace natural sand in coastal engineering applications. These engineered substrates can offset demand for scarce native sand resources, while also effecting the conversion of gaseous carbon dioxide to dissolved or solid-phase products thereby offsetting impacts of anthropogenic climate change.Type: ApplicationFiled: June 5, 2023Publication date: November 16, 2023Inventors: Stephen Justin ROMANIELLO, Brian David LEY, Margaret Grace ANDREWS, Nathan Gerard WALWORTH, Thomas ISHOEY, Tom Coxeter GREEN, Francesc Montserrat, Chloe Sarah Leach, David L. Kriebel, Devon Barnes Cole, Geoffrey Wadsworth Calkins, Douglas Owen Edward
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Publication number: 20220041949Abstract: The invention relates to a lubricant comprising a polyalkylene glycol basestock, a phenol selected from an ester of 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid with a C1-18 aliphatic alcohol, and an aromatic amine of the formula (I) as defined hereinafter. The invention further relates to a method for preparing the lubricant comprising the step of contacting the polyalkylene glycol basestock, the phenol, and the aromatic amine of the formula (I); and to a method for reducing the oxidative degradation of the polyalkylene glycol basestock comprising the step of contacting the polyalkylene glycol basestock, the phenol, and the aromatic amine of the formula (I).Type: ApplicationFiled: November 14, 2019Publication date: February 10, 2022Inventors: Marcel HARHAUSEN, Frank RITTIG, David LEY, Michael ROIDA, Wolfgang SCHROF
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Publication number: 20220033730Abstract: The invention relates to a lubricant comprising a polyalkylene glycol basestock, an aromatic amine of the formula (I) as defined hereinafter, and a thioether of the formula (II) as defined hereinafter. The invention further relates to a method for preparing the lubricant comprising the step of contacting the polyalkylene glycol basestock, the aromatic amine of the formula (I), and the thioether of the formula (II); and to a method for reducing the oxidative degradation of the lubricant comprising the step of contacting the polyalkylene glycol basestock, the aromatic amine of the formula (I), and the thioether of the formula (II).Type: ApplicationFiled: November 14, 2019Publication date: February 3, 2022Inventors: Marcel HARHAUSEN, Frank RITTIG, David LEY, Michael ROIDA, Wolfgang SCHROF
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Publication number: 20220002614Abstract: The present invention relates to a method of producing mineral oil from an underground mineral oil deposit, in which an aqueous saline surfactant formulation comprising a surfactant mixture, for the purpose of lowering the interfacial tension between oil and water to <0.1 mN/m, is injected through at least one injection well into the mineral oil deposit and crude oil is withdrawn from the deposit through at least one production well, wherein the mineral oil deposit is at a temperature of ?25° C. and <130° C.Type: ApplicationFiled: November 19, 2019Publication date: January 6, 2022Inventors: Christian BITTNER, Christian SPINDLER, Guenter OETTER, David LEY, Lorenz SIGGEL
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Publication number: 20210180095Abstract: Method for preparing a 2,5-furandicarboxylic acid (“FDCA”) comprising: contacting a polypeptide comprising an amino acid sequence that has greater than 34% sequence identity with an amino acid sequence set out in SEQ ID NO:1 or SEQ ID NO:2 with furoic acid in the presence of carbon dioxide; wherein the polypeptide has carboxylase and decarboxylase activity and comprises (i) the amino acid corresponding to H297 or a functional substitution thereof and (ii) at least one of (a) the amino acid corresponding to R305 or a functional substitution thereof; and (b) the amino acid corresponding to R332 or a functional substitution thereof; wherein the position is numbered relative to the amino acid sequence of SEQ ID NO:1 or SEQ ID NO:2.Type: ApplicationFiled: November 9, 2018Publication date: June 17, 2021Inventors: Karl Alex Peter PAYNE, David LEYS, David Alexander PARKER, Stephen Andrew MARSHALL
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Publication number: 20200239762Abstract: The present invention relates to a method of producing mineral oil from underground mineral oil deposits, in which an aqueous saline surfactant formulation comprising a surfactant mixture, for the purpose of lowering the interfacial tension between oil and water to <0.1 mN/m, is injected into a mineral oil deposit through at least one injection well and crude oil is withdrawn from the deposit through at least one production well, wherein the mineral oil deposit has a temperature of ?90° C.Type: ApplicationFiled: May 16, 2018Publication date: July 30, 2020Inventors: Christian BITTNER, Guenter OETTER, Christian SPINDLER, Hans BULLIEN, David LEY, Lorenz SIGGEL
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Patent number: 10693968Abstract: Methods, systems, and computer programs encoded on computer storage media, for binding service credentials to an application. One example system receives a service bind request for an application in a cloud application platform. The service bind request includes a request to bind a service provided by a service host in the cloud application platform. The service bind request specifies (i) an identifier for the service and (ii) a unique identifier for the application. The system receives, from the service host, credentials for the application to access the service. The system provides the credentials to a secure credential hub installed on the cloud application platform. The secure credential hub stores the credentials in association with a credential location identifier. The system grants, to the unique identifier for the application, read access to the credential location identifier. The system stores the credential location identifier as application metadata for the application.Type: GrantFiled: September 12, 2018Date of Patent: June 23, 2020Assignee: Pivotal Software, Inc.Inventors: Alexander David Ley, Colin Jackson, Eric James Malm, Stephen C. Levine, Zachary D. Robinson
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Publication number: 20200084281Abstract: Methods, systems, and computer programs encoded on computer storage media, for binding service credentials to an application. One example system receives a service bind request for an application in a cloud application platform. The service bind request includes a request to bind a service provided by a service host in the cloud application platform. The service bind request specifies (i) an identifier for the service and (ii) a unique identifier for the application. The system receives, from the service host, credentials for the application to access the service. The system provides the credentials to a secure credential hub installed on the cloud application platform. The secure credential hub stores the credentials in association with a credential location identifier. The system grants, to the unique identifier for the application, read access to the credential location identifier. The system stores the credential location identifier as application metadata for the application.Type: ApplicationFiled: September 12, 2018Publication date: March 12, 2020Inventors: Alexander David Ley, Colin Jackson, Eric James Malm, Stephen C. Levine, Zachary D. Robinson
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Patent number: 10581753Abstract: Methods, systems, and computer-readable media for on-demand resource provisioning for service instances. An on-demand service broker provisions IaaS resources at service instance creating time. The service broker provides a catalog listing one or more service plans, each service plan corresponds to a set of available resources. A user device selects a respective service plan that matches specific needs of an application that consumes the resources. The service broker generates a deployment manifest based on the selected service plan. The service broker then submits the deployment manifest to a deployment system. The deployment system provisions the resources to the service instance according to the manifest generated by the service broker.Type: GrantFiled: January 18, 2019Date of Patent: March 3, 2020Assignee: Pivotal Software, Inc.Inventors: Ben Jonathan Laplanche, Alexander David Ley, Dmitriy Kalinin, Craig Furman, Jatin Naik, Tom Anderson, Maria Ntalla, James Joshua Hill, Onsi Joe Fakhouri, Tammer Saleh
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Publication number: 20190199651Abstract: Methods, systems, and computer-readable media for on-demand resource provisioning for service instances. An on-demand service broker provisions IaaS resources at service instance creating time. The service broker provides a catalog listing one or more service plans, each service plan corresponds to a set of available resources. A user device selects a respective service plan that matches specific needs of an application that consumes the resources. The service broker generates a deployment manifest based on the selected service plan. The service broker then submits the deployment manifest to a deployment system. The deployment system provisions the resources to the service instance according to the manifest generated by the service broker.Type: ApplicationFiled: January 18, 2019Publication date: June 27, 2019Inventors: Ben Jonathan Laplanche, Alexander David Ley, Dmitriy Kalinin, Craig Furman, Jatin Naik, Tom Anderson, Maria Ntalla, James Joshua Hill, Onsi Joe Fakhouri, Tammer Saleh
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Patent number: 10187323Abstract: Methods, systems, and computer-readable media for on-demand resource provisioning for service instances. An on-demand service broker provisions IaaS resources at service instance creating time. The service broker provides a catalog listing one or more service plans, each service plan corresponds to a set of available resources. A user device selects a respective service plan that matches specific needs of an application that consumes the resources. The service broker generates a deployment manifest based on the selected service plan. The service broker then submits the deployment manifest to a deployment system. The deployment system provisions the resources to the service instance according to the manifest generated by the service broker.Type: GrantFiled: September 2, 2016Date of Patent: January 22, 2019Assignee: Pivotal Software, Inc.Inventors: Ben Jonathan Laplanche, Alexander David Ley, Dmitriy Kalinin, Craig Furman, Jatin Naik, Tom Anderson, Maria Ntalla, James Joshua Hill, Onsi Joe Fakhouri, Tammer Saleh
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Publication number: 20180069804Abstract: Methods, systems, and computer-readable media for on-demand resource provisioning for service instances. An on-demand service broker provisions IaaS resources at service instance creating time. The service broker provides a catalog listing one or more service plans, each service plan corresponds to a set of available resources. A user device selects a respective service plan that matches specific needs of an application that consumes the resources. The service broker generates a deployment manifest based on the selected service plan. The service broker then submits the deployment manifest to a deployment system. The deployment system provisions the resources to the service instance according to the manifest generated by the service broker.Type: ApplicationFiled: September 2, 2016Publication date: March 8, 2018Inventors: Ben Jonathan Laplanche, Alexander David Ley, Dmitriy Kalinin, Craig Furman, Jatin Naik, Tom Anderson, Maria Ntalla, James Joshua Hill, Onsi Joe Fakhouri, Tammer Saleh
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Patent number: 9157099Abstract: Method for preparing a mono-unsaturated alkene comprising contacting an aliphatic mono-unsaturated carboxylic acid with an Fdc1 polypeptide comprising an amino acid sequence with at least 21% sequence identity to SEQ ID NO: 1 and a Pad1 polypeptide comprising an amino acid sequence with at least 17% sequence identity to SEQ ID NO: 2.Type: GrantFiled: June 11, 2013Date of Patent: October 13, 2015Assignee: Shell Oil CompanyInventors: David Leys, Karl Alex Peter Payne, Nigel Shaun Scrutton, David Alexander Parker, Andrew James Murphy
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Publication number: 20150147800Abstract: The present invention relates to a method for the enzymatic decarboxylation of malonic acid (propanedioic acid) derivatives catalyzed by enzymes structurally and/or functionally related to arylmalonate decarboxylase (AMDase) as isolated from microorganisms of the genus Bordetella. The present invention also relates to novel enzymes with a decarboxylase activity, useful for performing the claimed method, mutants thereof, corresponding coding sequences and expression systems, methods of preparing said novel enzymes, and screening methods for obtaining further suitable enzymes also having said decarboxylase activity.Type: ApplicationFiled: December 29, 2014Publication date: May 28, 2015Inventors: Bernhard Hauer, Nina Schneider, Krzysztof Okrasa, Jason Micklefield, David Leys, Colin Levy
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Patent number: 8951750Abstract: The present invention relates to a method for the enzymatic decarboxylation of malonic acid (propanedioic acid) derivatives catalyzed by enzymes structurally and/or functionally related to arylmalonate decarboxylase (AMDase) as isolated from microorganisms of the genus Bordetella. The present invention also relates to novel enzymes with a decarboxylase activity, useful for performing the claimed method, mutants thereof, corresponding coding sequences and expression systems, methods of preparing said novel enzymes, and screening methods for obtaining further suitable enzymes also having said decarboxylase activity.Type: GrantFiled: November 28, 2008Date of Patent: February 10, 2015Assignee: BASF SEInventors: Bernhard Hauer, Nina Schneider, Krzysztof Okrasa, Jason Micklefield, David Leys, Colin Levy
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Publication number: 20130330795Abstract: Method for preparing a mono-unsaturated alkene comprising contacting an aliphatic mono-unsaturated carboxylic acid with an Fdc1 polypeptide comprising an amino acid sequence with at least 21% sequence identity to SEQ ID NO: 1 and a Pad1 polypeptide comprising an amino acid sequence with at least 17% sequence identity to SEQ ID NO: 2.Type: ApplicationFiled: June 11, 2013Publication date: December 12, 2013Inventors: David LEYS, Karl Alex Peter Payne, Nigel Shaun Scrutton, David Alexander Parker, Andrew James Murphy
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Publication number: 20100311037Abstract: The present invention relates to a method for the enzymatic decarboxylation of malonic acid (propanedioic acid) derivatives catalyzed by enzymes structurally and/or functionally related to arylmalonate decarboxylase (AMDase) as isolated from microorganisms of the genus Bordetella. The present invention also relates to novel enzymes with a decarboxylase activity, useful for performing the claimed method, mutants thereof, corresponding coding sequences and expression systems, methods of preparing said novel enzymes, and screening methods for obtaining further suitable enzymes also having said decarboxylase activity.Type: ApplicationFiled: November 28, 2008Publication date: December 9, 2010Applicant: Basf SEInventors: Bernhard Hauer, Nina Schneider, Krzysztof Okrasa, Jason Micklefield, David Leys, Colin Levy
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Patent number: 6506898Abstract: Provided is a process for preparing an at least bis-carbamate functional 1,3,5-triazine by contacting an at least diamino-1,3,5-triazine, an acyclic organic carbonate and a base, as well as certain novel compositions producible thereby. Also provided are substantially halogen contamination free crosslinker compositions comprising the products obtainable by the process, and curable compositions based upon these crosslinkers.Type: GrantFiled: May 25, 1995Date of Patent: January 14, 2003Assignee: Cytec Technology Corp.Inventors: Lawrence A. Flood, Ram B. Gupta, Revathi Iyengar, David A. Ley, Vankatarao K. Pai
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Publication number: 20020068792Abstract: The present invention is directed to a polymer component having controlled branching, formed from the reaction product of a prepolymer and a chain extender, which prepolymer is itself formed from the reaction product of a mixture of a non-self-associating isocyanate component, a diol component having a molecular weight from about 1500 to 6000 grams/mole and present in an amount greater than about 50% by weight based on the total weight of the prepolymer, and an ion-forming compound, where the chain extender includes an amine-containing compound and is present in an amount sufficient to react with at least about 99% of the isocyanate groups present after the prepolymer has been formed, wherein the controlled branching of the polymer includes at least one of:Type: ApplicationFiled: September 18, 2001Publication date: June 6, 2002Inventors: Irina Kobylanska, David M. Konkus, David A. Ley