Patents by Inventor John Barratt

John Barratt 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: 20220144746
    Abstract: A process for preparing an aldol ester of the formula (I), wherein at least one carboxylic anhydride of the formula (II) is reacted with at least one aldol of the formula (III) with heating in the presence of a basic catalyst with a pKa of the conjugate acid of at least 8, and the reaction product obtained from the process. The process provides a light-coloured and low-odour reaction product which has a high content of aldol ester content of the formula (I) and can be used, without elaborate purification steps, particularly without overhead distillation of the aldol ester, as a blocking agent for primary amines. The resultant blocked amines have a long storage life together with polymers containing isocyanate groups, and cure rapidly and reliably on contact with moisture to form mechanically high-grade and robust elastomers.
    Type: Application
    Filed: May 14, 2020
    Publication date: May 12, 2022
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Urs BURCKHARDT, Andreas KRAMER, Michael GEYER, John BARRATT
  • Patent number: 10927222
    Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: February 23, 2021
    Assignee: BASF SE
    Inventors: Sandra Jeck, Oliver Soetje, Tobias Bringmann, Gabriela Eugenia Fonseca Zepeda, Dirk Meckelnburg, Dennis Loesch, Bjoern Langlotz, John Barratt, Faissal-Ali El-Toufaili, Hazel Sprafke, Bernd Schube, Markus Ostermayr
  • Publication number: 20190292330
    Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.
    Type: Application
    Filed: April 20, 2017
    Publication date: September 26, 2019
    Applicant: BASF SE
    Inventors: Sandra JECK, Oliver SOETJE, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Dirk MECKELNBURG, Dennis LOESCH, Bjoern LANGLOTZ, John BARRATT, Faissal-Ali EL-TOUFAILI, Hazel SPRAFKE, Bernd SCHUBE, Markus OSTERMAYR
  • Publication number: 20190153300
    Abstract: A method for preparing an aqueous polyacrylamide solution, where the method includes: hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution; directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel; and directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution, wherein the polyacrylamide gel is dissolved by water jet cutting.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 23, 2019
    Applicant: BASF SE
    Inventors: Hazel SPRAFKE, Faissal-Ali EL-TOUFAILI, Bjoern LANGLOTZ, John BARRATT, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Sandra JECK, Dennis LOESCH, Dirk MECKELNBURG, Markus OSTERMAYR, Bernd SCHUBE, Oliver SOETJE
  • Publication number: 20190144574
    Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises:—hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution,—directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and—directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 16, 2019
    Applicant: BASF SE
    Inventors: Hazel SPRAFKE, Faissal-Ali EL-TOUFAILI, Bjoern LANGLOTZ, John BARRATT, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Sandra JECK, Dennis LOESCH, Dirk MECKELNBURG, Markus OSTERMAYR, Bernd SCHUBE, Oliver SOETJE
  • Patent number: 8325561
    Abstract: A seismic data acquisition system includes a controller, a plurality of sensor stations and a plurality of seismic sources. Each sensor station includes a sensor coupled to the earth for sensing seismic energy in the earth. The sensor provides a signal indicative of the sensed seismic energy and a recorder device co-located with the sensor unit that receives and stores the signals. A communication device is co-located with the sensor station and provides direct two-way wireless communication with the central controller. In one embodiment, in-field personnel determine elevation values, or Z values, for the sensor stations and seismic source by accessing a digital elevation model or a look-up table based on the digital elevation model. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: December 4, 2012
    Assignee: Inova Ltd.
    Inventors: Andrew Bull, John Barratt, Scott T. Hoenmans, Martin C. Williams
  • Publication number: 20080098012
    Abstract: Method for obtaining contextual information about an item based on information taken from or influenced by other items according to the relationships said item shares with other items, including the steps of (1) determining direct and indirect information of items, where the direct information includes generating a plurality of sets of structures, each structure relating to information about items and types of relationships between them, and each set consisting of common types of relationships between items, (2) determining direct and indirect relationships between items, where the direct relationship is selected from a set of potential relationships, (3) identifying classes or types of relationships that infer information about an item, (4) specifying correspondence between different types of relationships, and (5) combining the direct and indirect information of an item to establish its contextual information.
    Type: Application
    Filed: January 13, 2006
    Publication date: April 24, 2008
    Inventors: Andrew Waywood, John Barratt, Ian Hogan
  • Publication number: 20070286023
    Abstract: A seismic data acquisition system includes a controller, a plurality of sensor stations and a plurality of seismic sources. Each sensor station includes a sensor coupled to the earth for sensing seismic energy in the earth. The sensor provides a signal indicative of the sensed seismic energy and a recorder device co-located with the sensor unit that receives and stores the signals. A communication device is co-located with the sensor station and provides direct two-way wireless communication with the central controller. In one embodiment, in-field personnel determine elevation values, or Z values, for the sensor stations and seismic source by accessing a digital elevation model or a look-up table based on the digital elevation model. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
    Type: Application
    Filed: June 8, 2007
    Publication date: December 13, 2007
    Applicant: INPUT/OUTPUT, INC.
    Inventors: Andrew Bull, John Barratt, Scott Hoenmans, Martin Williams
  • Publication number: 20070237296
    Abstract: A biological and chemical decontamination device that includes at least one planar x ray source, an irradiation chamber that receive the x rays, and at least one access port on the irradiation chamber through which port articles can enter the irradiation chamber is described. The planar x-ray source includes a planar field emission cathode having a plurality of nanotubes, an electron target for receiving electrons from the cathode, and an applied voltage that accelerates electrons from the cathode to the target. The cathode can be formed into a variety of shapes as needed for specific applications.
    Type: Application
    Filed: September 13, 2005
    Publication date: October 11, 2007
    Inventors: Jeffrey Wyatt, Keith Bradley, John Barratt
  • Patent number: 5948126
    Abstract: The invention provides a gasoline composition which comprises a mixture of hydrocarbons of the gasoline boiling range containing an octane requirement reducing amount of an additive which comprises a furfuryl alcohol resin or derivative thereof and the use of the additive in a concentrate for a preparation of such gasoline composition and a method of operating a spark-ignition engine using such gasoline composition.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: September 7, 1999
    Assignee: Shell Oil Company
    Inventors: David John Barratt, Gautam Tavanappa Kalghatgi, Jian Lin
  • Patent number: 5925152
    Abstract: The invention provides a gasoline composition which comprises a mixture of hydrocarbons of the gasoline boiling range containing an octane requirement reducing amount of an additive comprising a furan derivative containing a furyl group bearing one or more substituents comprising one or more heterocyclic and/or one or more aryl groups; a concentrate for the preparation of such gasoline composition and a method of operating a spark-ignition engine using such gasoline composition.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: July 20, 1999
    Assignee: Shell Oil Company
    Inventors: David John Barratt, Jian Lin
  • Patent number: 5891202
    Abstract: The invention provides a gasoline composition which comprises a mixture of hydrocarbons of the gasoline boiling range containing an octane requirement reducing amount of an additive which comprises a furfuryl alcohol resin or derivative thereof and the use of the additive in a concentrate for a preparation of such gasoline composition and a method of operating a spark-ignition engine using such gasoline composition.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: April 6, 1999
    Assignee: Shell Oil Company
    Inventors: David John Barratt, Gautam Tavanappa Kalghatgi, Jian Lin
  • Patent number: D392787
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: March 31, 1998
    Assignee: Premier Brand (UK) Limited
    Inventor: Steven John Barratt