Patents by Inventor Grame J. Farquharson

Grame J. Farquharson 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: 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: 4655819
    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.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: April 7, 1987
    Assignee: ICI Australia Limited
    Inventors: Alexander Serban, Keith G. Watson, Grame J. Farquharson