Patents by Inventor Stephen Christopher Smith

Stephen Christopher Smith 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: 8956999
    Abstract: Pyrandione, thiopyrandione and cyclohexanetrione compounds of formula (I), which are suitable for use as herbicides.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: February 17, 2015
    Assignees: Syngenta Limited, Syngenta Crop Protection LLC
    Inventors: Stephane André Marie Jeanmart, Christopher John Mathews, John Benjamin Taylor, Mangala Govenkar, Stephen Christopher Smith
  • Patent number: 8828902
    Abstract: A microencapsulated catalyst is prepared by dissolving or dispersing a catalyst in a first phase (for example an organic phase), dispersing the first phase in a second, continuous phase (for example an aqueous phase) to form an emulsion, reacting one or more microcapsule wall-forming materials at the interface between the dispersed first phase and the continuous second phase to form a microcapsule polymer shell encapsulating the dispersed first phase core and optionally recovering the microcapsules from the continuous phase. The catalyst is preferably a transition metal catalyst and the encapsulated catalyst may be used for conventional catalysed reactions. The encapsulated catalyst may recovered from the reaction medium and re-cycled.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: September 9, 2014
    Assignee: Reaxa Limited
    Inventors: Chandrashekar Ramarao, David Joszef Tapolczay, Ian Malcolm Shirley, Stephen Christopher Smith, Steven Victor Ley
  • Patent number: 8530667
    Abstract: Compounds of formula (I) wherein the substituents are as defined in claim 1, are suitable for use as herbicides.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: September 10, 2013
    Assignee: Syngenta Limited
    Inventors: Stephane André Marie Jeanmart, John Benjamin Taylor, Melloney Tyte, Christopher John Mathews, Stephen Christopher Smith
  • Patent number: 7112553
    Abstract: A compound of formula (I) wherein G is either (i) or (ii), where M1 or M2 is bonded to A; n is 0 or 1; when G is (i), D is S, NR7, CR8?CR9, CR8?N, CR8?N(O), N?CR9 or N(O)?CR9; when G is (ii), D is S or NR7; E is N, N-oxide or CR10; M1 is OC(?Y), N(R11)C(?Y), N?C(OR12), N?C(SR13) or N?C(NR14R15) where O or N is the atom of attachment to the ring containing D and E; M2 is N—C(?Y) where N is the atom of attachment to the ring containing D and E; Y is O, S or NR16; J is N or CR17; and A, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 and R15 are each certain organic or inorganic groups. These compounds are useful in fungicidal, insecticidal, acaricidal, molluscicidal and hematicidal compositions.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: September 26, 2006
    Assignee: Syngenta Limited
    Inventors: Sarah Armstrong, Nigel John Barnes, Susan Patricia Barnett, Eric Daniel Clarke, Patrick Jelf Crowley, Torquil Eoghan Macleod Fraser, David John Hughes, Christopher John Mathews, Joan Pilkington, legal representative, Roger Salmon, Stephen Christopher Smith, Russell Viner, William Guy Whittingham, John Williams, Alan John Whittle, Brian Leslie Pilkington, deceased
  • Patent number: 6703347
    Abstract: A compound of formula (I), where A is optionally substituted alkylene, alkenylene, alkynylene, cycloalkylene, alkylenoxy, oxy(C1-6)alkylene, alkylenthio, thio(C1-6)alkylene, C1-6alkylenamino, amino(C1-6)alkylene, [C1-6alkyleneoxy(C1-6)alkylene], [C1-6alkylenethio(C1-6)alkylene], [1-6alkylenesulfinyl(C1-6)alkylene], [C1-6alkylenesulfonyl(C1-6)alkylene] or [C1-6alkyleneamino(C1-6)alkylene]; provided that A is not CH2 or CH2O; B is N,N-oxide or CR8; Y is O, S or NR9; Z is O, S or NR10; and R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 are specified radicals; compositions containing them; process for making them; and their use as insecticides or fungicides.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 9, 2004
    Assignee: Syngenta Limited
    Inventors: Sarah Armstrong, Nigel John Barnes, Susan Patricia Barnett, Eric Daniel Clarke, Patrick Jelf Crowley, Torquil Eoghan Macleod Fraser, David John Hughes, Christopher John Mathews, Roger Salmon, Stephen Christopher Smith, Russell Viner, William Guy Whittingham, John Williams, Alan John Whittle, William Roderick Mound, Christopher John Urch, Brian Leslie Pilkington
  • Publication number: 20030207926
    Abstract: A compound of formula (I), where A is optionally substituted alkylene, alkenylene, alkynylene, cycloalkylene, alkylenoxy, oxy(C1-6)alkylene, alkylenethio, thio(C1-6)alkylene, C1-6alkylenamino, amino(C1-6)alkylene, [C1-6alkyleneoxy(C1-6)alkylene], [C1-6alkylenethio(c1-6)alkylene], [1-6alkylenesulfinyl(c1-6)alkylene], [c1-6alkylenesulfonyl(C1-6)alkylenc] or [C1-6alkyleneamino(C1-6)alkylene]; provided that A is not CH2 or CH2O; B is N, N-oxide or CR8; Y is O, S or NR9; Z is O, S or NR10; and R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 are specified radicals; compositions containing them; processes for making them; and their use as insecticides or fungicides.
    Type: Application
    Filed: November 7, 2002
    Publication date: November 6, 2003
    Inventors: Sarag Armstrong, Nigel John Barnes, Susan Patricia Barnett, Eric Daniel Clarke, Patrick Jelf Crowley, Torquil Eoghan Macleod Fraser, David John Hughes, Christopher John Mathews, Roger Salmon, Stephen Christopher Smith, Russell Viner, William Guy Whittingham, John Williams, Alan John Whittle, William Roderick Mound, Christopher John Urch, Brian Leslie Pilkington, Joan Pilkington
  • Patent number: 6544989
    Abstract: The invention provides compounds of formula (I): where the substituents are as defined in the specification. The invention also provides processes for preparing the compounds, compositions comprising the compounds, methods of using the compounds and compositions to combat fungal diseases, and methods of using the compounds and compositions to combat or control insect, acarine, mollusc and nematode pests.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: April 8, 2003
    Assignee: Syngenta Limited
    Inventors: Christopher John Mathews, Russell Viner, Susan Patricia Barnett, Christopher John Urch, Stephen Christopher Smith, Patrick Jelf Crowley, William Guy Whittingham, Stephen Paul Heaney, John Williams, Torquil Eoghan Macleod Fraser, Eric Daniel Clarke, David John Hughes, Sarah Armstrong, Nigel John Barnes, Alan John Whittle, Brian Leslie Pilkington
  • Publication number: 20020049142
    Abstract: 1 A compund of formula (I) wherein X is O or S; n is 0 or 1; Y is O, S or NR7; R1 is hydrogen, halogen, C1-6 aklyl, C1-6 haloalkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylthio, C1-6 haloalkylthio, C3-6 cycloalkyl, C1-6 alkoxy(C1-6)alkyl or SF5, R2 is hydrogen, halogen, C1-6 alkyl, C1-6 alkoxy, C1-6 haloalkoxy, C1-6 alkylthio, C1-6 haloalkylthio, C1-6 alkylsulfinyl, C1-6 haloalkylsulfinyl, C1-6 alkylsulfonyl, C1-6 haloalkylsulfonyl, C1-6 haloalkyl, cyano, nitro, CHO, CH═NOR5, C1-6 alkylcarbonyl, C1-6 alkoxycarbonyl or SF5; or together R1 and R2 form a five or six membered saturated or unsturated carbocyclic ring, optionally substituted processes for preparing these compounds, compositions comprising them, methods of using them to combat fungal diseases and methods of using them to combat or control insect, acarine, mollusc and nematode pests.
    Type: Application
    Filed: January 23, 2001
    Publication date: April 25, 2002
    Inventors: Christopher John Mathews, Russell Viner, Susan Patricia Barnett, Christopher John Urch, Stephen Christopher Smith, Patrick Jelf Crowley, William Guy Whittingham, Stephen Paul Heaney, John Williams, Torquil Eoghan Macleod Fraser, Eric Daniel Clarke, David John Hughes, Sarah Armstrong, Nigel John Barnes, Alan John Whittle, Brian Leslie Pilkington, John Pilkington
  • Patent number: 5856273
    Abstract: A compound of formula (I): ##STR1## where E is oxygen or sulphur; A is CR.sup.3 or N where R.sup.3 is hydrogen or hydrocarbyl; D completes a 5 or 6-membered non-aromatic heterocyclic ring which optionally contains additional heteroatoms selected from oxygen, nitrogen or sulphur and which is optionally substituted by an optionally substituted lower hydrocarbyl group, or an optionally substituted heteroaryl group; R.sup.1 and R.sup.2 are each independently hydrogen; optionally substituted lower hydrocarbyl, or optionally substituted heteroaryl, or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached, form a heterocyclic ring; Z represents halogen optionally substituted lower hydrocarbyl, optionally substituted lower hydocarbyloxy, optionally substituted lower hydrocarbylthio, hydrocarbylsulphinyl or hydrocarbylsulphonyl, cyano, nitro, CHO, NHOH, ONR.sup.7' R.sup.7", SF.sub.5 ; CO (optionally substituted lower hydrocarbyl), acylamino, COOR.sup.7, SO.sub.2 NR.sup.8 R.sup.9, CONR.sup.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: January 5, 1999
    Assignee: Zeneca Limited
    Inventors: Ian Trevor Kay, John Edward Duncan Barton, David John Collins, Bogdan Kowalczyk, Glynn Mitchell, John Martin Shribbs, John Micheal Cox, Nigel John Barnes, Stephen Christopher Smith
  • Patent number: 5705456
    Abstract: Compounds of formula I: ##STR1## where n is 0 or an integer from 1 to 5; X is halogen, nitro or cyano, or C.sub.1-10 hydrocarbyl or C.sub.1-10 hydrocarbyloxy, either of which may be substituted with one or more halogen atoms;Y is CH.sub.2, O or S; andR.sup.1 and R.sup.2 independently represent hydrogen, C.sub.1-6 alkyl, C.sub.1-6 haloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl or halogen;Processes for the preparation of compounds of formula I, herbicidal compositions and methods utilising them are also disclosed.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: January 6, 1998
    Assignee: Zeneca Limited
    Inventors: Glynn Mitchell, Stephen Christopher Smith
  • Patent number: 5670656
    Abstract: A process for the preparation of a compound of general formula II: ##STR1## wherein R.sup.1 is hydrogen, or C.sub.1 -C.sub.10 hydrocarbyl or heterocyclyl having 3 to 8 ring atoms, either of which may optionally be substituted; each R.sup.2, R.sup.3, R.sup.4 and R.sup.5 is independently hydrogen or C.sub.1 -C.sub.4 alkyl; A is an optionally substituted aromatic or heteroaromatic ring system; and R.sup.21 is hydrogen, halogen, OH or OCONHR.sup.1, wherein R.sup.1 is as defined above; the process comprising cyclizing a compound of general formula III: ##STR2## wherein A, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.21 are as defined in general formula II and R.sup.25 is a leaving group such as a halogen atom; under basic conditions.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: September 23, 1997
    Assignee: Zeneca Limited
    Inventors: John Michael Cox, Kevin James Gillen, Russell Martin Ellis, Shaheen Khatoon Vohra, Stephen Christopher Smith, Ian Richard Matthews