Patents by Inventor Keith G. Watson

Keith G. Watson 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: 7795301
    Abstract: The invention relates to compounds of general formula (I); in which R is an amino or guanidino group; R2 is acetyl or trifluoroacetyl; and n is an integer from 10 to 18 or a pharmaceutically acceptable derivative thereof, methods for their preparation, pharmaceutical formulations containing them or their use in the prevention or treatment of a viral infection.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: September 14, 2010
    Assignee: Biota Scientific Management Pty, Ltd.
    Inventors: Derek A. Demaine, Graham G. A. Inglis, Simon J. F. MacDonald, Stephen E. Shanahan, Simon P. Tucker, Keith G. Watson, Wen-Yang Wu
  • Patent number: 7371755
    Abstract: This invention relates to a compound capable of binding to a picornavirus capsid comprising two or more capsid binding moieties.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: May 13, 2008
    Assignee: Biota Scientific Management Pty Ltd.
    Inventors: Guy Krippner, Phillip A. Reece, Keith G. Watson, Wen-Yang Wu, Betty Jin, Simon P. Tucker
  • Patent number: 7230028
    Abstract: The invention relates to compounds of general formula (I); in which R is an amino or guanidino group; R2 is acetyl or trifluoroacetyl; and n is an integer from 10 to 18 or a pharmaceutically acceptable derivative thereof, methods for their preparation, pharmaceutical formulations containing them or their use in the prevention or treatment of a viral infection
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: June 12, 2007
    Assignee: Biota Scientific Management Pty Ltd.
    Inventors: Derek A. Demaine, Graham G. A. Inglis, Simon J. F. MacDonald, Stephen E. Shanahan, Simon P. Tucker, Keith G. Watson, Wen-Yang Wu
  • Patent number: 5110989
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: W are selected from alkyl, alkenyl and alkynyl;X are selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkynyl, alkenyloxy, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof, and an alkylene group which bridges two adjacent carbon atoms of the benzene ring;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: May 5, 1992
    Assignee: ICI Australia Limited
    Inventors: Alexander Serban, Keith G. Watson, Graham J. Bird, Graeme J. Farquharson, Linsay E. Cross
  • Patent number: 4952722
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: W are selected from alkyl, alkenyl and alkynyl;X are selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkynyl, alkenyloxy, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, amino, substituted amino, and the groups formyl and alkanoyl and the oxime and imine derivatives thereof, and an alkylene group which bridges two adjacent carbon atoms of the benzene ring;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;p is zero or an integer selected form 1 to 4;n is zero or an integer selected from 1 to 3; andm is zero or an integer selected from 1 to 3.
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: August 28, 1990
    Assignee: ICI Australia Limited
    Inventors: Alexander Serban, Keith G. Watson, Graham J. Bird, Graeme J. Farquharson, Lindsay E. Cross
  • Patent number: 4938793
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: X are selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkenyloxy, alkynyl, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, alkanoyloxy, benzyloxy, substituted benzyloxy, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;R.sup.4 is selected from hydrogen, halogen, alkyl, cyano and alkoxycarbonyl; andn is selected from the integers 1 and 2.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: July 3, 1990
    Assignee: ICI Australia Limited
    Inventors: Keith G. Watson, Graeme J. Farquharson
  • Patent number: 4929269
    Abstract: Compounds of the formula ##STR1## and salts thereof, W and W, being independently O and S, A being a nitrogen-containing heterocyclic ring system, E being O, S(O)m or NR.sub.3 where m is 0-2, R.sub.1, R.sub.2 and R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkenyl or alkynyl and E.sub.1 being hydrogen, halogen or one of a variety of organic substituents.The compounds are effective herbicides.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: May 29, 1990
    Assignee: ICI Australia Operations Proprietary Limited
    Inventors: Keith G. Watson, Peter Drygala, Stephen Bell
  • Patent number: 4923989
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: X are selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkenyloxy, alkynyl, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, alkanoyloxy, benzyloxy, substituted benzyloxy, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;R.sup.4 is selected from hydrogen, halogen, alkyl, cyano and alkoxycarbonyl; andn is selected from the integers 1 and 2.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: May 8, 1990
    Assignee: ICI Australia Limited
    Inventors: Keith G. Watson, Graeme J. Farquharson
  • Patent number: 4888043
    Abstract: The invention concerns compounds of the formula I ##STR1## wherein: Z is selected from hydrogen, alkyl, alkanoyl, sulfamoyl, carboxy and trifluoroacetamido;Y is selected from various carboxy or thiocarboxy groups, haloalkanoyl, alkylsulfonyl and haloalkylsulfonyl;R.sup.1 is selected from hydrogen, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl and alkynyl;R.sup.3 is selected from alkyl; andR.sup.4 is selected from hydrogen, alkyl, and alkoxycarbonyl.The compounds of the invention show herbicidal properties and plant growth regulating properties and in further embodiments and the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of the compounds of formula I, compositions containing as active ingredient a compound of formula I, and herbicidal and plant growth regulating processes utilizing compounds of formula I.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: December 19, 1989
    Assignee: ICI Australia Limited
    Inventors: Keith G. Watson, Craig G. Lovel
  • Patent number: 4886911
    Abstract: The invention concerns compounds of formula I ##STR1## wherein: X and Y are independently selected from the group consisting of hydrogen, C.sub.1 to C.sub.4 alkyl, C.sub.1 to C.sub.4 haloalkyl, and the group wherein X and Y together from a three or four-membered carbon bridge the bridge optionally comprising one or both of a double bond and a carbonyl group;Z is selected from the group consisting of hydrogen, halogen, C.sub.1 to C.sub.4 alkyl and C.sub.1 to C.sub.4 alkanoyl;R.sup.1 is selected from the group consisting of: hydrogen; an acyl group; and an inorganic or organic cation;R.sup.2 is selected from the group consisting of: C.sub.1 to c.sub.6 alkyl; C.sub.2 to C.sub.6 alkenyl; C.sub.2 to C.sub.6 haloakenyl; C.sub.2 to C.sub.6 alkynyl; and substituted C.sub.1 to C.sub.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: December 12, 1989
    Assignee: ICI Australia Limited
    Inventors: Keith G. Watson, Craig G. Lovel
  • Patent number: 4837355
    Abstract: The invention concerns a process for the synthesis of a compound of formula I ##STR1## wherein: U and V may be chosen from a range of substituents including hydrogen, halogen, alkyl and alkoxy; R.sup.1 and R.sup.2 may be chosen from a range of substituents including hydrogen and alkyl; n is 0, 1 or 2; and W may be chosen from a range of substitutents including the group ##STR2## which may be a free carboxylic acid or derivative thereof; the process comprising reacting a sulfate ester of formula II, wherein Q is a cation, with a compound of formula III, wherein L is a leaving group ##STR3## and hydrolyzing the sulfate ester formed. Preferably the sulfate ester of formula II is prepared by the oxidation of a phenol of formula IV with a persulfate.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: June 6, 1989
    Assignee: ICI Australia Limited
    Inventor: Keith G. Watson
  • Patent number: 4806141
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein Z is selected from hydrogen, halogen, C.sub.1 to C.sub.6 alkyl, and C.sub.1 to C.sub.6 alkoxy;Y is selected from halogen, C.sub.1 to C.sub.6 alkyl and C.sub.1 to C.sub.6 alkoxy;X is selected from halogen, C.sub.1 to C.sub.6 alkyl and C.sub.1 to C.sub.6 alkoxy and if Y is methyl and Z is hydrogen or methyl then at least one of X is not methyl;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl and phenyl; andm is an integer chosen from 1 to 3.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: February 21, 1989
    Assignee: ICI Australia Limited
    Inventors: Keith G. Watson, Lynette A. Garson, Graham J. Bird, Graeme J. Farquharson
  • Patent number: 4803273
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: D and U are independently chosen from halogen, methyl and halomethyl;G is chosen from hydroxy, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, cycloalkoxy and the group OM wherein M is an alkali metal or alkaline earth metal ion; andk and l are independently chosen from 0 and 1.The compounds are herbicides and in further embodiments the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compositions containing as active ingredient a compound of formula I, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants and effective amount of a compound of formula I. Intermediates for making the compounds I wherein the group ##STR2## is replaced by hydroxy or C.sub.1 to C.sub.6 alkoxy are included.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: February 7, 1989
    Assignee: ICI Australia Limited
    Inventors: Alexander Serban, Keith G. Watson, Grame J. Farquharson
  • Patent number: 4795487
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: the substituent X is chosen from cyano, carbamoyl and thiocarbamoyl;Z is selected from hydrogen, methyl, C.sub.1 to C.sub.4 alkanoyl, sulfamoyl, dimethylsulfamoyl and trifluoroacetylamino;R.sup.1 is selected from hydrogen, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl and alkynyl;R.sup.3 is selected from alkyl; andR.sup.4 is selected from hydrogen, alkyl, and alkoxycarbonyl.The compounds of the invention show herbicidal properties and plant growth regulating properties and in further embodiments and the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of the compounds of formula I, compositions containing as active ingredient a compound of formula I, and herbicidal and plant growth regulating processes utilizing compounds of formula I.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: January 3, 1989
    Assignee: ICI Australia Limited
    Inventors: Keith G. Watson, Craig G. Lovel
  • Patent number: 4767879
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: X is selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkynyl, alkenyloxy, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;m is an integer chosen from 3 to 5.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: August 30, 1988
    Assignee: ICI Australia Limited
    Inventors: Keith G. Watson, Lynette A. Garson, Graham J. Bird, Lindsay E. Cross, Graeme J. Farquharson
  • Patent number: 4760192
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, acyl, alkylsulfonyl, benzenesulfonyl, substituted benzenesulfonyl, and an inorganic or organic cation;R.sup.2 is selected from alkyl, alkenyl, alkynyl, substituted alkyl, haloalkenyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl and phenyl; andn is an integer chosen from 2 to 5.The compounds are cereal selective herbicides and in further embodiments the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compositions containing as active ingredient a compound of formula I, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants an effective amount of a compound of formula I.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: July 26, 1988
    Assignee: Imperial Chemical Industries plc
    Inventors: Richard B. Warner, Alexander Serban, Keith G. Watson, Graham J. Bird, Lindsay E. Cross, Graeme Farquharson
  • Patent number: 4746350
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: Y is selected from phenyl, furyl, thienyl and pyrrolyl rings (each optionally substituted by group X), optionally branched alkylene or alkylenethio(oxy)alkylene;X which may be the same or different are independently selected from halogen, nitro, alkyl, substituted alkyl, hydroxy, alkoxy, carboxy, alkoxycarbonyl, alkylthio, sulfamoyl, substituted sulfamoyl, amino, substituted amino and alkanoyl;R.sup.1 is selected from hydrogen, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl and alkynyl;R.sup.3 is selected from alkyl; andR.sup.4 is selected from hydrogen, alkyl, and alkoxycarbonyl.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: May 24, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventor: Keith G. Watson
  • Patent number: 4738710
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: A, B, D, E, J.sup.1, J.sup.2, U and V are chosen from hydrogen, halogen, nitro, cyano, thiocyano, amino, substituted amino, alkyl, substituted alkyl, alkenyl, cycloalkyl, alkoxy, substituted alkoxy, alkylthio, alkylsulfinyl, substituted alkylsulfinyl, alkylsulfonyl, substituted alkylsulfonyl, sulfamoyl, substituted sulfamoyl, sulfo, carboxy, alkoxycarbonyl, carbamoyl, substituted carbamoyl and optionally substituted phenyl, phenoxy and phenylthio;R.sup.1 is chosen from hydrogen, alkyl, substituted alkyl, alkenyl, alkanoyl and alkoxycarbonyl; R.sup.2 is chosen from hydrogen, alkyl, substituted alkyl and alkenyl; or R.sup.1 and R.sup.2 together form an alkylidene group;W is chosen from cyano, thiocarbamoyl, the group --CH.sub.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: April 19, 1988
    Assignee: ICI Australia Limited
    Inventors: Alexander Serban, Keith G. Watson
  • Patent number: 4717418
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, acyl, alkylsulfonyl, benzenesulfonyl, substituted benzenesulfonyl, and an inorganic or organic cation;R.sup.2 is selected from alkyl, alkenyl, alkynyl, substituted alkyl, haloalkenyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl and phenyl; andn is an integer chosen from 2 to 5.The compounds are cereal selective herbicides and in further embodiments of the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compositions containing as active ingredient a compound of formula I, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants an effective amount of a compound of formula I.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: January 5, 1988
    Assignee: ICI Australia Limited
    Inventors: Richard B. Warner, Alexander Serban, Keith G. Watson, Graham J. Bird, Lindsay E. Cross, Graeme J. Farquharson
  • Patent number: 4715884
    Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: A, B and D are selected from CH and N;E is selected from oxygen and sulfur;X are selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkenyloxy, alkynyl, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, alkanoyloxy, benzyloxy, substituted benzyloxy, phenyl, substituted phenyl, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;R.sup.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: December 29, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventor: Keith G. Watson