Patents by Inventor Robert J. G. Searle

Robert J. G. Searle 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).

  • Compounds for the loosening of fruit and/or leaves on plants
    Patent number: 4372776
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 and R.sup.3 each is hydrogen or R.sup.1 and R.sup.3 together form a second carbon-to-nitrogen bond, R.sup.2 is hydrogen or cyano, R.sup.4 is alkyl and Ar is one of certain aromatic moieties.The compounds can be used as abscission agents for the loosening of fruit and/or leaves on plants.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: February 8, 1983
    Assignee: Shell Oil Company
    Inventors: Janet A. Day, Robert J. G. Searle
  • 2-Cyano-2-carboxy-3-azabicyclo[3.1.0]hexane, hydrates, esters, and salts thereof
    Patent number: 4288367
    Abstract: 2-cyano-2-carboxy-3-azabicyclo[3.1.0]hexane, hydrates, esters, and salts thereof, useful as pollen-suppressants.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: September 8, 1981
    Assignee: Shell Oil Company
    Inventors: Janet A. Day, Robert J. G. Searle
  • Process for preparing 3-azabicyclo(3.1.0)hexane-2-carboxylic acid
    Patent number: 4279821
    Abstract: 3-Azabicyclo(3.1.0)hexane-2-carboxylic acid, a plant gametocide, is prepared by effecting reaction between cis 2-aminomethylcyclopropyl-1,1-dimethyl acetal and a cyanide in the presence of a liquid lower-alkanecarboxylic acid; treating the resulting N-alkanoyl-3-azabicyclo(2.1.0)hexane-2-carbonitrile with a strong acid; treating the resulting 3-alkanoyl-3-azabicyclo(3.1.0)hexane-2-carboxylic acid with strong acid to form the desired 3-azabicyclo(3.1.0)hexane-2-carboxylic acid.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: July 21, 1981
    Assignee: Shell Oil Company
    Inventors: Janet A. Day, Barry R. J. Devlin, Robert J. G. Searle
  • Process for preparing 3-azabicyclo(3.1.0)hexane-2-carboxylic acid
    Patent number: 4255334
    Abstract: 3-Azabicyclo(3.1.0)hexane-2-carboxylic acid, a plant gametocide, is prepared by effecting reaction between cis 2-aminomethylcyclopropyl-1,1-dimethyl acetal and a cyanide in the presence of a liquid lower-alkanecarboxylic acid; treating the resulting N-alkanoyl-3-azabicyclo(2.1.0)hexane-2-carbonitrile with a strong acid; treating the resulting 3-alkanoyl-3-azabicyclo(3.1.0)hexane-2-carboxylic acid with strong acid to form the desired 3-azabicyclo(3.1.0)hexane-2-carboxylic acid.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 10, 1981
    Assignee: Shell Oil Company
    Inventors: Janet A. Day, Barry R. J. Devlin, Robert J. G. Searle
  • 2-Aminomethylcyclopropyl-1,1-dialkylacetals
    Patent number: 4254057
    Abstract: 3-azabicyclo(3.1.0)hexane-2-carboxylic acid, a plant gametocide, is prepared by effecting reaction between cis 2-aminomethylcyclopropyl-1,1-dimethyl acetal and a cyanide in the presence of a liquid lower-alkanecarboxylic acid; treating the resulting N-alkanoyl-3-azabicyclo(2.1.0)hexane-2-carbonitrile with a strong acid; treating the resulting 3-alkanoyl-3-azabicyclo(3.1.0)hexane-2-carboxylic acid with strong acid to form the desired 3-azabicyclo(3.1.0)hexane-2-carboxylic acid.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: March 3, 1981
    Assignee: Shell Oil Company
    Inventors: Janet A. Day, Barry R. J. Devlin, Robert J. G. Searle
  • Esters of 2-carboxy-3-azabicyclo-(3.1.0)hex-2-ene
    Patent number: 4249936
    Abstract: Esters of 2-carboxy-3-azabicyclo(3.1.0)hex-2-ene, useful as intermediates to the cis-racemate of methanoproline, and as inhibitors of pollen formation in cereal grains.
    Type: Grant
    Filed: December 7, 1979
    Date of Patent: February 10, 1981
    Assignee: Shell Oil Company
    Inventors: Robert J. G. Searle, Janet A. Day
  • Phenoxybenzyl ester pesticides
    Patent number: 4175134
    Abstract: Certain esters of alpha-substituted-phenoxybenzyl alcohols of the formula ##STR1## wherein A represents certain optionally substituted aralkyl, alkyl or cyclopropyl groups at least one of X and Y is sulfur and the other independently represents oxygen or sulfur and R represents certain alkyl, alkenyl, alkynyl, aralkyl, alkaryl or aryl groups, hydrogen or a salt-forming cation, are useful as pesticides.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: November 20, 1979
    Assignee: Shell Oil Company
    Inventors: Royston H. Davis, Robert J. G. Searle
  • Dispirocyclopropane carboxylate pesticides
    Patent number: 4118510
    Abstract: Certain dispirocyclopropane carboxylates are useful as pesticides.
    Type: Grant
    Filed: March 30, 1978
    Date of Patent: October 3, 1978
    Assignee: Shell Oil Company
    Inventors: Royston H. Davis, Robert J. G. Searle
  • 2-Substituted isovaleric acid ester pesticides
    Patent number: 4100363
    Abstract: Compounds of the formula ##STR1## wherein R is alkenyl, aralkyl or alkyl; X is H, CN, thioamide, or alkynyl; and Y is phenoxyphenyl or phthalimido, are useful as pesticides.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: July 11, 1978
    Assignee: Shell Oil Company
    Inventors: Michael J. Bull, Robert J. G. Searle
  • Dispirocyclopropane carboxylate pesticides
    Patent number: 4100298
    Abstract: Certain dispirocyclopropane carboxylates are useful as pesticides.
    Type: Grant
    Filed: February 23, 1977
    Date of Patent: July 11, 1978
    Assignee: Shell Oil Company
    Inventors: Royston H. Davis, Robert J. G. Searle
  • Thioamide pesticides
    Patent number: 4096275
    Abstract: Certain carboxylic acid esters in which the alcohol portion contains an alpha-thioamide group are useful as pesticides.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: June 20, 1978
    Assignee: Shell Oil Company
    Inventors: Robert J. G. Searle, Clive B. C. Boyce
  • Benzyl ethers
    Patent number: 4073812
    Abstract: Pesticidal benzyl ethers of the formula: ##STR1## wherein each symbol has a meaning defined in the specification.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: February 14, 1978
    Assignee: Shell Oil Company
    Inventors: Michael J. Bull, Robert J. G. Searle
  • Thioamide pesticides
    Patent number: 4045575
    Abstract: Certain carboxylic acid esters in which the alcohol portion contains an alpha-thioamide group are useful as pesticides.
    Type: Grant
    Filed: March 9, 1976
    Date of Patent: August 30, 1977
    Assignee: Shell Oil Company
    Inventors: Robert J. G. Searle, Clive B. C. Boyce
  • Alpha-cyano-phenoxybenzyl-isovalerates
    Patent number: 4042710
    Abstract: Compounds of the formula ##STR1## wherein R is alkenyl, aralkyl or alkyl; X is H, CN, thioamide, or alkynyl; and Y is phenoxyphenyl or phthalimido, are useful as pesticides.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: August 16, 1977
    Assignee: Shell Oil Company
    Inventors: Michael J. Bull, Robert J. G. Searle
  • Cyclopropane carboxylates
    Patent number: 4021466
    Abstract: Cyclopropane derivatives of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl; R.sub.3 is hydrogen, alkynyl or cyano; R.sub.4 is optionally substituted phenyl and n is an integer of 2 to 5 are useful as pesticides.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: May 3, 1977
    Assignee: Shell Oil Company
    Inventors: Royston H. Davis, Robert J. G. Searle
  • Pesticidal cyclopropane derivatives
    Patent number: 4012522
    Abstract: Cyclopropane derivatives of the formula: ##STR1## wherein each R, R.sub.1, and R.sub.2 is alkyl, R.sub.3 is optionally substituted hydrocarbyl, and Z is optionally substituted phenyl are useful as pesticides.
    Type: Grant
    Filed: September 9, 1975
    Date of Patent: March 15, 1977
    Assignee: Shell Oil Company
    Inventors: Robert J. G. Searle, Roger E. Woodall
  • Pesticidal cyclopropane derivatives
    Patent number: 3993774
    Abstract: Cyclopropane derivatives of the formula ##EQU1## wherein each R is alkyl, R.sub. 3 is optionally substituted hydrocarbyl, each Hal represents halogen, and Z represents an optionally substituted phenyl group are useful as pesticides.
    Type: Grant
    Filed: September 9, 1975
    Date of Patent: November 23, 1976
    Assignee: Shell Oil Company
    Inventors: Robert J. G. Searle, Roger E. Woodall
  • Pesticidal dihalovinyl-spiroalkanecyclopropane derivatives
    Patent number: 3987193
    Abstract: Compounds of the formula ##EQU1## wherein R.sup.1 and R.sup.2 each is a halogen atom, R.sup.3 is hydrogen, alkynyl or cyano; R.sup.4 is phenoxyphenyl and n is an integer from 2 to 5, are useful as pesticides.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: October 19, 1976
    Assignee: Shell Oil Company
    Inventors: Royston H. Davis, Robert J. G. Searle
  • Pesticidal cyclopropane derivatives
    Patent number: 3979424
    Abstract: Cyclopropane derivatives of the formula: ##EQU1## wherein each R, R.sub.1, and R.sub.2 is alkyl, R.sub.3 is optionally substituted hydrocarbyl, and Z is optionally substituted phenyl are useful as pesticides.
    Type: Grant
    Filed: February 15, 1974
    Date of Patent: September 7, 1976
    Assignee: Shell Oil Company
    Inventors: Robert J. G. Searle, Roger E. Woodall
  • Cyanobenzyl cyclopropane carboxylate pesticides
    Patent number: 3973035
    Abstract: New cyanobenzyl cyclopropane carboxylates of the formula: ##EQU1## where Hal represents a halogen atom; R.sub.1 and R.sub.2 each represent an alkyl group; and X represent an optionally substituted phenyl group are useful as pesticides.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: August 3, 1976
    Assignee: Shell Oil Company
    Inventors: Robert J. G. Searle, Roger E. Woodall, Michael J. Bull