Patents by Inventor Nigel James Willetts

Nigel James Willetts 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).

  • Patent number: 12043599
    Abstract: The present invention relates to compounds of Formula (I), wherein R1, R2, R3, R4 and G are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I), to their use for controlling weeds, in particular in crops of useful plants.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 23, 2024
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: Alan Joseph Hennessy, Elizabeth Pearl Jones, Shuji Hachisu, Nigel James Willetts, Suzanna Dale, Alexander William Gregory, Ian Thomas Tinmouth Houlsby, Yunas Bhonoah, Julia Comas-Barcelo
  • Patent number: 11980188
    Abstract: The present invention relates to compounds of Formula (I), wherein R1, R2, R3, R4 and G are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I), to their use for controlling weeds, in particular in crops of useful plants.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 14, 2024
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: Alan Joseph Hennessy, Elizabeth Pearl Jones, Shuji Hachisu, Nigel James Willetts, Suzanna Dale, Alexander William Gregory, Ian Thomas Tinmouth Houlsby, Yunas Bhonoah, Julia Comas-Barcelo
  • Patent number: 11618743
    Abstract: Compounds of the formula (I) wherein the substituents are as defined in claim 1, useful as a pesticides, especially as herbicides.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: April 4, 2023
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: James Nicholas Scutt, Nigel James Willetts, Ravindra Sonawane, Mangala Phadte, Sandeep Reddy Kandukuri, Swarnendu Sasmal, Sarah Armstrong, Andrea McGranaghan, Sean Ng
  • Patent number: 11542235
    Abstract: The present invention relates to compounds of Formula (I), wherein R1, R2, R3, R4 and G are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I), to their use for controlling weeds, in particular in crops of useful plants.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: January 3, 2023
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: Alan Joseph Hennessy, Elizabeth Pearl Jones, Shuji Hachisu, Nigel James Willetts, Suzanna Dale, Alexander William Gregory, Ian Thomas Tinmouth Houlsby, Yunas Bhonoah, Julia Comas-Barcelo
  • Patent number: 10301295
    Abstract: The present invention relates to a compound of formula (I) wherein: wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and G are as defined herein; and wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are thought to be suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the plants or to the locus thereof.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 28, 2019
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: Shuji Hachisu, Alan Joseph Hennessy, Jeffrey Steven Wailes, Nigel James Willetts, Christopher John Mathews, Janice Black, Suzanna Jane Dale
  • Patent number: 10206394
    Abstract: The present invention relates to a compound of formula (I) wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and G are as defined herein; and wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the plants or to the locus thereof.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: February 19, 2019
    Assignee: SYNGENTA PARTICIPATIONS AG
    Inventors: Alan Joseph Hennessy, Shuji Hachisu, Jeffrey Steven Wailes, Nigel James Willetts, Ian Stuart Cloudsdale, Janice Black, Emma Briggs, Suzanna Jane Dale
  • Patent number: 9615577
    Abstract: The present invention relates to a compound of formula (I), wherein: X is methyl or chlorine; R1 is methyl or chlorine; R2 is hydrogen, methyl, ethyl, n-propyl, cyclopropyl, vinyl, ethynyl, fluorine, chlorine, bromine, C1-C3alkoxy, C1-C2-fluoroalkoxy, C1-C2alkoxy-C1-C3alkoxy- or C1fluoroalkoxy-C1-C3alkoxy-; and Y is O, S, S(O), S(O)2, N(C1-C2alkyl), N(C1-C2alkoxy), C(O), CR8R9 or —CR10R11CR12R13—; and G, R3, R4, R5 and R6 are as defined herein; wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the plants or to the locus thereof.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 11, 2017
    Assignee: Syngenta Limited
    Inventors: William Roderick Mound, James Nicholas Scutt, Mark Slater, Nigel James Willetts
  • Publication number: 20150342185
    Abstract: The present invention relates to a compound of formula (I), wherein: X is methyl or chlorine; R1 is methyl or chlorine; R2 is hydrogen, methyl, ethyl, n-propyl, cyclopropyl, vinyl, ethynyl, fluorine, chlorine, bromine, C1-C3alkoxy, C1-C2-fluoroalkoxy, C1-C2alkoxy-C1-C3alkoxy- or C1fluoroalkoxy-C1-C3alkoxy-; and Y is O, S, S(O), S(O)2, N(C1-C2alkyl), N(C1-C2alkoxy), C(O), CR8R9 or —CR10R11CR12R13—; and G, R3, R4, R5 and R6 are as defined herein; wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the plants or to the locus thereof.
    Type: Application
    Filed: December 19, 2013
    Publication date: December 3, 2015
    Applicant: Syngenta Limited
    Inventors: William Roderick Mound, James Nicholas Scutt, Mark Slater, Nigel James Willetts
  • Patent number: 8987455
    Abstract: The present invention relates to a method of controlling plants or inhibiting plant growth which comprises applying to the plants or to the locus thereof a herbicidally effective amount of a compound of formula (I) wherein A1, A2, A3, A4, R3, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to intermediates used in the preparation of compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to certain novel pyridopyridines, pyridodiazines and pyridotriazines.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: March 24, 2015
    Assignee: Syngenta Limited
    Inventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
  • Patent number: 8962628
    Abstract: The present invention provides a compound of formula (I) wherein R4 is of sub-formula (a) or (b) and wherein the other substituents are as defined in the specification. The compounds of formula (I) are potentially useful as herbicides.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 24, 2015
    Assignee: Syngenta Limited
    Inventors: Alaric James Avery, Alain De Mesmaeker, Nicholas Phillip Mulholland, Nigel James Willetts, Paul Anthony Worthington
  • Publication number: 20140011677
    Abstract: The present invention relates to a method of controlling plants or inhibiting plant growth which comprises applying to the plants or to the locus thereof a herbicidally effective amount of a compound of formula (I) wherein A1, A2, A3, A4, R3, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to intermediates used in the preparation of compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to certain novel pyridopyridines, pyridodiazines and pyridotriazines.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 9, 2014
    Applicant: Syngenta Limited
    Inventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
  • Publication number: 20130303370
    Abstract: The present invention provides a compound of formula (I) wherein R4 is of sub-formula (a) or (b) and wherein the other substituents are as defined in the specification. The compounds of formula (I) are potentially useful as herbicides.
    Type: Application
    Filed: October 14, 2011
    Publication date: November 14, 2013
    Applicants: SYNGENTA LIMITED, SYNGENTA PARTICIPATIONS AG
    Inventors: Alaric James Avery, Alain De Mesmaeker, Nicholas Phillip Mulholland, Nigel James Willetts, Paul Anthony Worthington
  • Patent number: 8569301
    Abstract: The present invention relates to 6,6-dioxo-6-thia-1,4-diaza-naphthalene derivatives of formula (I) where R1, R2, R3a, R3b, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to methods of using compounds of formula (I) to control plant growth.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: October 29, 2013
    Assignee: Syngenta Limited
    Inventors: Nigel James Willetts, Nicholas Phillip Mulholland, Paul Anthony Worthington, Alaric James Avery
  • Patent number: 8557840
    Abstract: The present invention relates to a method of controlling plants or inhibiting plant growth which comprises applying to the plants or to the locus thereof a herbicidally effective amount of a compound of formula (I): wherein A1, A2, A3, A4, R3, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to intermediates used in the preparation of compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to certain novel pyridopyridines, pyridodiazines and pyridotriazines.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 15, 2013
    Assignee: Syngenta Limited
    Inventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
  • Publication number: 20120115726
    Abstract: The present invention relates to 6,6-dioxo-6-thia-1,4-diaza-naphthalene derivatives of formula (I) where R1, R2, R3a, R3b, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to methods of using compounds of formula (I) to control plant growth.
    Type: Application
    Filed: May 6, 2010
    Publication date: May 10, 2012
    Applicant: SYNGENTA CROP PROTECTION LLC
    Inventors: Nigel James Willetts, Nicholas Phillip Mulholland, Paul Anthony Worthington, Alaric James Avery
  • Patent number: 8133849
    Abstract: The present invention relates to compounds of formula (I), wherein R1, R2, R3, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to intermediates used in the preparation of compounds of formula (I), to methods of controlling plants and compositions comprising compounds of formula (I).
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: March 13, 2012
    Assignee: Syngenta Limited
    Inventors: Nigel James Willetts, Matthew Robert Cordingley, Patrick Jelf Crowley, Suzanna Jane Riley, Michael Drysdale Turnbull
  • Publication number: 20110034334
    Abstract: The present invention relates to a method of controlling plants or inhibiting plant growth which comprises applying to the plants or to the locus thereof a herbicidally effective amount of a compound of formula (I): wherein A1, A2, A3, A4, R3, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to intermediates used in the preparation of compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to certain novel pyridopyridines, pyridodiazines and pyridotriazines.
    Type: Application
    Filed: January 16, 2009
    Publication date: February 10, 2011
    Applicant: SYNGENTA CROP PROTECTION, INC.
    Inventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
  • Publication number: 20100323889
    Abstract: The present invention relates to compounds of formula (I), wherein R1, R2, R3, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to intermediates used in the preparation of compounds of formula (I), to methods of controlling plants and compositions comprising compounds of formula (I).
    Type: Application
    Filed: November 10, 2008
    Publication date: December 23, 2010
    Applicant: SYNGENTA CROP PROTECTION, INC.
    Inventors: Nigel James Willetts, Matthew Robert Cordingley, Patrick Jelf Crowley, Suzanna Jane Riley, Michael Drysdale Turnbull
  • Patent number: 5914423
    Abstract: A process for the preparation of a compound of formula (I):HetSCH.sub.2 CH.sub.2 CH.dbd.CF.sub.2 (I)wherein Het is an optionally substituted 5- or 6-membered heterocyclic ring, which comprises reacting a compound of formula (II):HetSH (II)with a compound of formula (III):CF.sub.2 .dbd.CHCH.sub.2 CH.sub.2 L (III)wherein L is chlorine or bromine or a group --OSO2R.sup.a wherein R.sup.a is a C1-4 alkyl group or a phenyl group optionally substituted by a C1-4 alkyl group.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: June 22, 1999
    Assignee: Zeneca, Limited
    Inventors: Michael Drysdale Turnbull, Nigel James Willetts, Steven Fitzjohn, Prafula Govind Kholia, Harjindersingh Bansal, Alfred Glyn Williams
  • Patent number: 5728833
    Abstract: A process for the preparation of a compound of formula (I):HetSCH.sub.2 CH.sub.2 CH.dbd.CF.sub.2 (I)wherein Het is an optionally substituted 5- or 6-membered heterocyclic ring, which comprises reacting a compound of formula (II):HetSH (II)with a compound of formula (III):CF.sub.2 .dbd.CHCH.sub.2 CH.sub.2 L (III)wherein L is chlorine or bromine or a group --OSO2R.sup.a wherein R.sup.a is a C1-4 alkyl group or a phenyl group optionally substituted by a C1-4 alkyl group.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: March 17, 1998
    Assignee: Zeneca Limited
    Inventors: Michael Drysdale Turnbull, Nigel James Willetts, Steven Fitzjohn, Prafula Govind Kholia, Alison Mary Smith, Roger Salmon, Harjinder Singh Bansal