Patents Assigned to Innospec Limited
  • Method for determining the presence of an acidic sulfide species in a non-aqueous liquid using a metal complex dye
    Patent number: 11988608
    Abstract: A method for determining the presence of an acidic sulfide species in a liquid sample of an industrial or environmental material. The method includes the step of contacting the sample or an extract thereof with a composition including a metal complex dye compound in which the electromagnetic absorption spectrum of the metal complex dye compound changes upon reaction with an acidic sulfide species.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: May 21, 2024
    Assignee: INNOSPEC LIMITED
    Inventor: Philip Maltas
  • Treatment of subterranean formations
    Patent number: 11987751
    Abstract: A method of treating a subterranean formation by contacting the formation with the following: (a) ammonium compound; (b) an oxidizing agent selected from a perchlorate or a nitrite or combinations thereof; and (c) sulfamic acid.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: May 21, 2024
    Assignee: INNOSPEC LIMITED
    Inventors: Ian Malcolm McRobbie, William Trenholme
  • COMPOSITION, METHOD AND USE
    Publication number: 20240150665
    Abstract: A method of reducing particulate emissions from a direct injection spark ignition engine, the method comprising combusting in the engine a gasoline composition comprising as an additive a quaternary ammonium compound.
    Type: Application
    Filed: December 22, 2023
    Publication date: May 9, 2024
    Applicant: Innospec Limited
    Inventors: Simon Christopher Mulqueen, Keith Woodall
  • COMPOSITION, METHOD AND USE
    Publication number: 20240124794
    Abstract: A method of reducing particulate emissions from a direct injection spark ignition engine, the method comprising combusting in the engine a gasoline composition comprising as an additive a quaternary ammonium compound.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 18, 2024
    Applicant: Innospec Limited
    Inventors: Simon Christopher Mulqueen, Keith Woodall
  • Method of assembling an apparatus for containing reagents for a chemical reaction
    Patent number: 11951452
    Abstract: A method of assembling an apparatus for containing reagents for a chemical reaction. The apparatus includes an elongate housing and a receptacle. The elongate housing may include a cooling means, and end fittings which may include ports where fluids may be introduced and/or removed. Specifically, the method relates to the securement of a receptacle relative to the outwardly facing surface of the housing.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: April 9, 2024
    Assignee: INNOSPEC LIMITED
    Inventors: Carl Waterson, Richard David Hayton, Ian Malcolm McRobbie
  • Polymerisation method and apparatus therefor
    Patent number: 11813602
    Abstract: A method of assembling and/or operating apparatus for undertaking a chemical reaction. The apparatus includes a housing in which a precursor of a receptacle is arranged. A fluid (F1) may be introduced into said precursor to cause the precursor to inflate.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: November 14, 2023
    Assignee: INNOSPEC LIMITED
    Inventors: Carl Waterson, Richard David Hayton, Ian Malcolm McRobbie
  • Treatment of subterranean formations
    Patent number: 11753583
    Abstract: A method of treating a subterranean formation by contacting the formation with the following: (a) an ammonium compound; (b) an oxidizing agent selected from a perchlorate or a nitrite or combinations thereof; and (c) one or more acids, at least one of which is a bisulfate salt.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: September 12, 2023
    Assignee: INNOSPEC LIMITED
    Inventors: Ian Malcolm McRobbie, William Trenholme
  • Compositions and methods and uses relating thereto
    Patent number: 11739276
    Abstract: A diesel fuel composition comprising as an additive an ester compound which is the reaction product of an optionally substituted polycarboxylic acid or an anhydride thereof and a polyhydric alcohol of formula H—(OR)n—OH, wherein R is an optionally substituted alkylene group and n is at least 1.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: August 29, 2023
    Assignee: Innospec Limited
    Inventors: Matthew Petts, Katherine Le Manquais, Alan Norman Ross
  • Treatment of subterranean formations
    Patent number: 11739256
    Abstract: A method of treating a subterranean formation by contacting the formation with the following: (a) ammonium sulfamate; (b) an oxidizing agent selected from a perchlorate or a nitrite or combinations thereof; and (c) an acid.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: August 29, 2023
    Assignee: INNOSPEC LIMITED
    Inventors: Ian Malcolm McRobbie, William Trenholme
  • Compositions and methods and uses relating thereto
    Patent number: 11732205
    Abstract: A quaternary ammonium compound of formula (I): wherein R0, R1, R2 and R3 is each independently an optionally substituted hydrocarbyl group, X is a linking group, R4 is an optionally substituted alkylene group, R5 is hydrogen or an optionally substituted alkyl, alkenyl or aryl group, and n is 0 or a positive integer, provided that n is not 0 when R5 is hydrogen.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: August 22, 2023
    Assignee: Innospec Limited
    Inventors: Matthew Petts, Katherine Le Manquais, Alan Norman Ross
  • METHOD AND USE
    Publication number: 20230257669
    Abstract: A diesel fuel composition comprising as an additive an ester compound which is the reaction product of an optionally substituted polycarboxylic acid or an anhydride thereof and a polyhydric alcohol of formula H—(OR)n—OH, wherein R is an optionally substituted alkylene group and n is at least 1.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 17, 2023
    Applicant: Innospec Limited
    Inventors: Matthew Petts, Katherine Le Manquais, Alan Ross
  • Methods, compositions and uses relating thereto
    Patent number: 11642291
    Abstract: A method of treating a material, the method comprising contacting the material with a composition comprising a hydroxy-substituted aldehyde. In preferred aspects of the invention the material is a keratinous material.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: May 9, 2023
    Assignee: Innospec Limited
    Inventors: Tony Gough, Matthew Robert Giles, Kimberley Elizabeth Griffiths, Nicholas John Dixon, Ian Malcolm Mcrobbie
  • Compositions, and Methods and Uses Relating Thereto
    Publication number: 20230034373
    Abstract: A fuel oil composition comprising a blended fuel oil having a sulfur content of less than 5000 ppm and an additive wherein the additive is a copolymer comprising maleic anhydride derived units and ?-olefin derived units.
    Type: Application
    Filed: July 15, 2022
    Publication date: February 2, 2023
    Applicant: Innospec Limited
    Inventors: Joseph L. Stark, Paul J. Biggerstaff
  • Quaternary ammonium compound and fuel composition
    Patent number: 11566197
    Abstract: A quaternary ammonium compound of formula (I): wherein R0, R1, R2 and R3 is each independently an optionally substituted hydrocarbyl group; X is a linking group; R4 is an optionally substituted alkylene group; n is a positive integer; W is O? or OH; b is 1 when W is OH, and b is 2 when W is O?.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: January 31, 2023
    Assignee: Innospec Limited
    Inventors: Alan Norman Ross, Matthew Petts
  • COMPOSITIONS AND METHODS AND USES RELATING THERETO
    Publication number: 20220403268
    Abstract: A fuel composition comprising as an additive the reaction product of a polycarboxylic acid having no more than 5 carbon atoms per carboxylic acid group, or an anhydride thereof and an alcohol having at least 5 carbon atoms.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 22, 2022
    Applicant: Innospec Limited
    Inventors: Alan Norman Ross, Martin Roberts, Alexander Smith
  • COMPOSITIONS AND METHODS AND USES RELATING THERETO
    Publication number: 20220403269
    Abstract: A fuel composition comprising as an additive the reaction product of a polycarboxylic acid compound of formula (I): (I) or an anhydride thereof; and an alcohol having at least 5 carbon atoms; wherein each of n and m may be 0 or a positive integer.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 22, 2022
    Applicant: Innospec Limited
    Inventors: Alan Norman Ross, Martin Roberts, Alexander Fagan
  • COMPOSITIONS AND METHODS AND USES RELATING THERETO
    Publication number: 20220403270
    Abstract: A quaternary ammonium compound of formula (I): wherein R0, R1, R2 and R3 is each independently an optionally substituted hydrocarbyl group, X is a linking group, R4 is an optionally substituted alkylene group, R5 is hydrogen or an optionally substituted alkyl, alkenyl or aryl group, and n is 0 or a positive integer, provided that n is not 0 when R5 is hydrogen.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 22, 2022
    Applicant: Innospec Limited
    Inventors: Matthew Petts, Katherine Le Manquais, Alan Norman Ross
  • Compositions and methods and uses relating thereto
    Patent number: 11396634
    Abstract: A quaternary ammonium compound of formula (I): wherein R0, R1, R2 and R3 is each independently an optionally substituted hydrocarbyl group, X is a linking group, R4 is an optionally substituted alkylene group, R5 is hydrogen or an optionally substituted alkyl, alkenyl or aryl group, and n is 0 or a positive integer, provided that n is not 0 when R5 is hydrogen.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 26, 2022
    Assignee: Innospec Limited
    Inventors: Matthew Petts, Katherine Le Manquais, Alan Norman Ross
  • Methods, compositions and uses relating thereto
    Patent number: 11311471
    Abstract: A method of treating a material, the method comprising the steps of: (1) contacting the material with a composition comprising an electrophilic species selected from aldehydes, succinimidyl esters, and mixtures thereof; (2) contacting the material with a composition comprising a chelating agent and/or a salt of an amine and/or a carboxylic acid.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 26, 2022
    Assignee: Innospec Limited
    Inventors: Nicholas John Dixon, Matthew Robert Giles, Kimberley Elizabeth Griffiths, Tony Gough, Ian Malcolm McRobbie
  • Methods, compositions and uses relating thereto
    Patent number: 11304884
    Abstract: A method of treating a material, the method comprising contacting the material with a composition comprising an alpha-substituted aldehyde.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: April 19, 2022
    Assignee: Innospec Limited
    Inventors: Tony Gough, Matthew Robert Giles, Kimberley Elizabeth Griffiths, Nicholas John Dixon, Ian Malcolm McRobbie