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).
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Patent number: 12043599Abstract: 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: GrantFiled: March 6, 2019Date of Patent: July 23, 2024Assignee: SYNGENTA PARTICIPATIONS AGInventors: 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
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Patent number: 11980188Abstract: 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: GrantFiled: March 11, 2019Date of Patent: May 14, 2024Assignee: SYNGENTA PARTICIPATIONS AGInventors: 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
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Patent number: 11618743Abstract: Compounds of the formula (I) wherein the substituents are as defined in claim 1, useful as a pesticides, especially as herbicides.Type: GrantFiled: August 16, 2018Date of Patent: April 4, 2023Assignee: SYNGENTA PARTICIPATIONS AGInventors: James Nicholas Scutt, Nigel James Willetts, Ravindra Sonawane, Mangala Phadte, Sandeep Reddy Kandukuri, Swarnendu Sasmal, Sarah Armstrong, Andrea McGranaghan, Sean Ng
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Patent number: 11542235Abstract: 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: GrantFiled: February 14, 2019Date of Patent: January 3, 2023Assignee: SYNGENTA PARTICIPATIONS AGInventors: 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
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Patent number: 10301295Abstract: 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: GrantFiled: October 13, 2015Date of Patent: May 28, 2019Assignee: SYNGENTA PARTICIPATIONS AGInventors: Shuji Hachisu, Alan Joseph Hennessy, Jeffrey Steven Wailes, Nigel James Willetts, Christopher John Mathews, Janice Black, Suzanna Jane Dale
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Patent number: 10206394Abstract: 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: GrantFiled: October 13, 2015Date of Patent: February 19, 2019Assignee: SYNGENTA PARTICIPATIONS AGInventors: Alan Joseph Hennessy, Shuji Hachisu, Jeffrey Steven Wailes, Nigel James Willetts, Ian Stuart Cloudsdale, Janice Black, Emma Briggs, Suzanna Jane Dale
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Patent number: 9615577Abstract: 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: GrantFiled: December 19, 2013Date of Patent: April 11, 2017Assignee: Syngenta LimitedInventors: William Roderick Mound, James Nicholas Scutt, Mark Slater, Nigel James Willetts
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Publication number: 20150342185Abstract: 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: ApplicationFiled: December 19, 2013Publication date: December 3, 2015Applicant: Syngenta LimitedInventors: William Roderick Mound, James Nicholas Scutt, Mark Slater, Nigel James Willetts
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Patent number: 8987455Abstract: 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: GrantFiled: September 6, 2013Date of Patent: March 24, 2015Assignee: Syngenta LimitedInventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
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Patent number: 8962628Abstract: 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: GrantFiled: October 14, 2011Date of Patent: February 24, 2015Assignee: Syngenta LimitedInventors: Alaric James Avery, Alain De Mesmaeker, Nicholas Phillip Mulholland, Nigel James Willetts, Paul Anthony Worthington
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Publication number: 20140011677Abstract: 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: ApplicationFiled: September 6, 2013Publication date: January 9, 2014Applicant: Syngenta LimitedInventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
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Publication number: 20130303370Abstract: 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: ApplicationFiled: October 14, 2011Publication date: November 14, 2013Applicants: SYNGENTA LIMITED, SYNGENTA PARTICIPATIONS AGInventors: Alaric James Avery, Alain De Mesmaeker, Nicholas Phillip Mulholland, Nigel James Willetts, Paul Anthony Worthington
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Patent number: 8569301Abstract: 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: GrantFiled: May 6, 2010Date of Patent: October 29, 2013Assignee: Syngenta LimitedInventors: Nigel James Willetts, Nicholas Phillip Mulholland, Paul Anthony Worthington, Alaric James Avery
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Patent number: 8557840Abstract: 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: GrantFiled: January 16, 2009Date of Patent: October 15, 2013Assignee: Syngenta LimitedInventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
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Publication number: 20120115726Abstract: 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: ApplicationFiled: May 6, 2010Publication date: May 10, 2012Applicant: SYNGENTA CROP PROTECTION LLCInventors: Nigel James Willetts, Nicholas Phillip Mulholland, Paul Anthony Worthington, Alaric James Avery
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Patent number: 8133849Abstract: 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: GrantFiled: November 10, 2008Date of Patent: March 13, 2012Assignee: Syngenta LimitedInventors: Nigel James Willetts, Matthew Robert Cordingley, Patrick Jelf Crowley, Suzanna Jane Riley, Michael Drysdale Turnbull
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Publication number: 20110034334Abstract: 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: ApplicationFiled: January 16, 2009Publication date: February 10, 2011Applicant: SYNGENTA CROP PROTECTION, INC.Inventors: Matthew Robert Cordingley, Michael Drysdale Turnbull, Nigel James Willetts, Patrick Jelf Crowley
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Publication number: 20100323889Abstract: 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: ApplicationFiled: November 10, 2008Publication date: December 23, 2010Applicant: SYNGENTA CROP PROTECTION, INC.Inventors: Nigel James Willetts, Matthew Robert Cordingley, Patrick Jelf Crowley, Suzanna Jane Riley, Michael Drysdale Turnbull
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Patent number: 5914423Abstract: 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: GrantFiled: November 24, 1997Date of Patent: June 22, 1999Assignee: Zeneca, LimitedInventors: Michael Drysdale Turnbull, Nigel James Willetts, Steven Fitzjohn, Prafula Govind Kholia, Harjindersingh Bansal, Alfred Glyn Williams
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Patent number: 5728833Abstract: 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: GrantFiled: August 4, 1994Date of Patent: March 17, 1998Assignee: Zeneca LimitedInventors: Michael Drysdale Turnbull, Nigel James Willetts, Steven Fitzjohn, Prafula Govind Kholia, Alison Mary Smith, Roger Salmon, Harjinder Singh Bansal