Patents by Inventor David F. O'Keefe

David F. O'Keefe 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: 4390715
    Abstract: The (+), (-) and (.+-.) forms of the compounds of the general formula (I) ##STR1## characterized in that R.sup.1 is a halo group; or a lower alkyl, lower alkoxy or lower alkylthio group, each of which may be substituted with one or more halo groups;R.sup.2 is hydrogen or a methyl group; or R.sup.1 and R.sup.2 together form a methylenedioxy, or a difluoromethylenedioxy group or, with the carbon atoms to which they are attached, an aromatic or heteroaromatic ring; andA is one of the groups X or Y ##STR2## wherein X.sup.1 and X.sup.2 are the same or different and each is hydrogen or a fluoro, chloro, bromo or methyl group, with the proviso that if X.sup.1 is a fluoro group, then X.sup.2 should not be a bromo group; and X.sup.3 and X.sup.4 are the same or different and each is hydrogen or a fluoro group; andY.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5 and Y.sup.6 are the same or different groups and each is hydrogen or a fluoro, bromo, chloro, or methyl group.The compounds (I) are insecticidally active.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: June 28, 1983
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: George Holan, David F. O'Keefe
  • Patent number: 4355042
    Abstract: Compounds of the general formula I ##STR1## wherein R.sup.1 is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group, and R.sup.2 is hydrogen or a methyl group, orR.sup.1 and R.sup.2 together form a methylenedioxy group;R.sup.3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (f):(a) 3-phenoxybenzyl(b) 2-benzyl-4-furylmethyl(c) .alpha.-cyano-3-phenoxybenzyl(d) 3,4-methylenedioxybenzyl(e) .alpha.-ethynyl-3-phenoxybenzyl(f) .alpha.-cyano-3-(4'-chlorophenoxy)-benzyland Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5 and Y.sup.6 are the same or different groups and each is hydrogen or a fluoro, bromo or chloro group, with the proviso that when R.sup.1 is hydrogen, fluoro, chloro, bromo or methyl and R.sup.2 is hydrogen, then one of Y.sup.1 to Y.sup.6 is other than hydrogen.The compounds in which R.sup.3 is one of groups (a) to (f) are insecticides.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: October 19, 1982
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: George Holan, David F. O'Keefe
  • Patent number: 4348409
    Abstract: Compounds of the general formula I ##STR1## wherein R.sup.1 is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group, and R.sup.2 is hydrogen or a methyl group, or R.sup.1 and R.sup.2 together form a methylenedioxy group; R.sup.3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (f):(a) 3-phenoxybenzyl(b) 2-benzyl-4-furylmethyl(c) .alpha.-cyano-3-phenoxybenzyl(d) 3,4-methylenedioxybenzyl(e) .alpha.-ethynyl-3-phenoxybenzyl(f) .alpha.-cyano-3-(4'-chlorophenoxy)-benzyland Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5 and Y.sup.6 are the same or different groups and each is hydrogen or a fluoro, bromo or chloro group, with the proviso that when R.sup.1 is hydrogen, fluoro, chloro, bromo or methyl and R.sup.2 is hydrogen, then one of Y.sup.1 to Y.sup.6 is other than hydrogen.The compounds in which R.sup.3 is one of groups (a) to (f) are insecticides.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: September 7, 1982
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: George Holan, David F. O'Keefe
  • Patent number: 4339458
    Abstract: Compounds of the general formula I ##STR1## wherein R.sup.1 is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group, and R.sup.2 is hydrogen or a methyl group, or R.sup.1 and R.sup.2 together form a methylenedioxy group;R.sup.3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (f):(a) 3-phenoxybenzyl(b) 2-benzyl-4-furylmethyl(c) .alpha.-cyano-3-phenoxybenzyl(d) 3,4-methylenedioxybenzyl(e) .alpha.-ethynyl-3-phenoxybenzyl(f) .alpha.-cyano-3-(4'-chlorophenoxy)-benzyland Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5 and Y.sup.6 are the same or different groups and each is hydrogen or a fluoro, bromo or chloro group, with the proviso that when R.sup.1 is hydrogen, fluoro, chloro, bromo or methyl and R.sup.2 is hydrogen, then one of Y.sup.1 to Y.sup.6 is other than hydrogen.The compounds in which R.sup.3 is one of groups (a) to (f) are insecticides.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: July 13, 1982
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: George Holan, David F. O'Keefe
  • Patent number: 4235926
    Abstract: Compounds of the general formula I ##STR1## wherein R.sup.1 is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group, and R.sup.2 is hydrogen or a methyl group, or R.sup.1 and R.sup.2 together form a methylenedioxy group;R.sup.3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (f):(a) 3-phenoxybenzyl(b) 2-benzyl-4-furylmethyl(c) .alpha.-cyano-3-phenoxybenzyl(d) 3,4-methylenedioxybenzyl(e) .alpha.-ethynyl-3-phenoxybenzyl(f) .alpha.-cyano-3-(4'-chlorophenoxy)-benzyland Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5 and Y.sup.6 are the same or different groups and each is hydrogen or a fluoro, bromo or chloro group, with the proviso that when R.sup.1 is hydrogen, fluoro, chloro, bromo or methyl and R.sup.2 is hydrogen, then one of Y.sup.1 to Y.sup.6 is other than hydrogen.The compounds in which R.sup.3 is one of groups (a) to (f) are insecticides.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: November 25, 1980
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: George Holan, David F. O'Keefe