Patents by Inventor William C. Doyle, Jr.

William C. Doyle, Jr. 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).

  • 5-Substituted-3-fluorosulfonyl-4H-1,2,4-triazoles and use as insecticides and miticides
    Patent number: 4226873
    Abstract: New fluorosulfonyltriazole compounds which are useful as miticides and inseciticides have the general structural formula ##STR1## and tautomeric forms thereof, in which R is hydrogen, C.sub.1 to C.sub.7 alkyl, alkoxyalkyl, phenoxyalkyl, benzyl, phenyl or C.sub.3 to C.sub.6 cycloalkyl.
    Type: Grant
    Filed: February 23, 1977
    Date of Patent: October 7, 1980
    Assignee: Gulf Oil Corporation
    Inventors: Joel L. Kirkpatrick, William C. Doyle, Jr.
  • Combating unwanted vegetation with 1,3,4-thiadiazolylureas
    Patent number: 4086077
    Abstract: Undesired vegetation, including crabgrass, Johnson grass and pigweed are effectively controlled in cotton, corn and peanuts in the warm temperate zones by application of an effective amount of 1,3-dimethyl-1-(5-tert.butyl-1,3,4-thiadiazol-2-yl)urea or the corresponding 1-ethyl-3-methyl compound to the locus of the weeds. A particularly desirable procedure is the use of one of the new herbicides in combination with alachlor to give very broad spectrum weed control, including such noxious weeds as nutsedge.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: April 25, 1978
    Assignee: Gulf Research & Development Company
    Inventor: William C. Doyle, Jr.
  • Barban formulation
    Patent number: 4084956
    Abstract: Barban (4-chloro-2-butynyl m-chlorocarbanilate) is formulated as liquid emulsifiable concentrates containing as much as twenty to thirty percent of the herbicide which have improved efficacy and unlike other formulations of higher concentration, are also safe to use in wheat fields. A particularly critical component of the improved concentrate is a condensation product of C.sub.12 to C.sub.18 fatty alcohols with from ten to forty units of ethylene oxide.
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: April 18, 1978
    Assignee: Gulf Oil Corporation
    Inventors: William C. Doyle, Jr., Marion F. Botts
  • 1-Dimethylcarbamyl-3-branched alkyl-1,2,4-triazol-5-yl-(N-substituted) sulfonamides and their use as insecticides
    Patent number: 4038387
    Abstract: Triazolylsulfonamides of a limited class are substantially non-phytotoxic and are useful as insecticides. For example 1-N,N-dimethylcarbamyl-3-tert.butyl-1,2,4-triazol-5-yl-N,N-dimethylsulfona mide is effective in aphid control, both by foliar application and systemically.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: July 26, 1977
    Assignee: Gulf Oil Corporation
    Inventors: William C. Doyle, Jr., Joel L. Kirkpatrick
  • Combating unwanted vegetation with 1,3,4-thiadiazole-2-sulfonamides
    Patent number: 4021225
    Abstract: A class of 5-ureido and thioureido-1,3,4-thiadiazole-2-sulfonamides bearing various substituents on both sulfonamide and ureido nitrogen atoms is employed to combat unwanted vegetation both pre- and post-emergently.
    Type: Grant
    Filed: February 26, 1971
    Date of Patent: May 3, 1977
    Assignee: Gulf Research & Development Company
    Inventors: Loren W. Hedrich, William C. Doyle, Jr.
  • 1-Dimethylcarbamyl-3-branched alkyl-1,2,4-triazol-5-yl-(N-substituted) sulfonamides and use as insecticides
    Patent number: 3973028
    Abstract: Triazolylsulfonamides of a limited class are substantially non-phytotoxic and are useful as insecticides. For example 1-N,N-dimethylcarbamyl-3-tert.butyl-1,2,4-triazol-5-yl-N,N-dimethylsulfona mide is effective in aphid control, both by foliar application and systemically.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: August 3, 1976
    Assignee: Gulf Oil Corporation
    Inventors: William C. Doyle, Jr., Joel L. Kirkpatrick
  • Selectively herbicidal 2-substituted-4H-3,1-benzoxazin-4-ones
    Patent number: 3970652
    Abstract: Unwanted vegetation is combated in the presence of grain crops and soybeans by post-emergent application of one or more of the following compounds:2-(m-chlorophenyl)-4H-3,1-benzoxazin-4-one,2-(m-trifluoromethylphenyl)-4H-3,1-benzoxazin-4-one,2-(2-thienyl)-4H-3,1-benzoxazin-4-one,2-(o-trifluoromethylphenyl)-4H-3,1-benzoxazin-4-one,2-(p-trifluoromethylphenyl)-4H-3,1-benzoxazin-4-one,2-(4-methyl-1,2,3-thiadizole-5-yl)-benzoxazin-4-one2-(m-bromophenyl)-4H-3,1-benzoxazin-4-one.
    Type: Grant
    Filed: June 2, 1972
    Date of Patent: July 20, 1976
    Assignee: Gulf Research & Development Company
    Inventor: William C. Doyle, Jr.
  • Multistep synthesis for certain 1,3,4-thiadiazoles and intermediate
    Patent number: 3932437
    Abstract: The industrial herbicide 5-(1,3,3-trimethylureido)-N,N-dimethyl-1,3,4-thiadiazole-2-sulfonamide and other compounds of similar structure may be made by a novel procedure in which the first step is the oxidative chlorination of a 2-alkylamino-5-mercapto-1,3,4-thiadiazole to yield the corresponding sulfonyl chloride. The subject compound which possesses five methyl substituent groups is more effective as a herbicide than compounds which contain other alkyl substituents or a lesser number of methyl substituents.
    Type: Grant
    Filed: August 13, 1973
    Date of Patent: January 13, 1976
    Assignee: Gulf Research & Development Company
    Inventors: William C. Doyle, Jr., Loren W. Hedrich