Patents by Inventor Roger E. Woodall

Roger E. Woodall 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).

  • Pesticidal benzodioxole
    Patent number: 5356924
    Abstract: Compounds of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently represents a halogen atom or an alkyl, alkoxy, haloalkyl, haloalkoxy, alkoxycarbonyl, alkenoxy, cyano or nitro group; R.sub.3 and R.sub.4 each independently represents a hydrogen atom or an alkyl group; R.sub.5 represents a hydrogen atom, or an alkyl, alkoxy or alkoxycarbonylalkyl group; X and Y each independently represents an oxygen or sulphur atom or a group N--R, in which R is a hydrogen atom or an alkyl group; n is 0-3; r is 0 or 1; m is 0-4; and A or B represents a group of the general formula: ##STR2## wherein R.sub.6 represents a hydrogen or halogen atom, or an alkyl group; and R.sub.7 represents a halogen atom or an alkyl group; the other of A and B being a hydrogen atom or as for R.sub.1 or R.sub.2, have useful pesticidal activity.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: October 18, 1994
    Assignee: Shell Research Limited
    Inventors: Martin Anderson, Antony G. Brinnand, Roger E. Woodall
  • Pesticidal heterocyclic compounds
    Patent number: 5212171
    Abstract: Compounds of the general formula: ##STR1## ps wherein R.sub.1 and R.sub.2 each independently represents a halogen atom or an alkyl, alkoxy, haloalkyl, haloalkoxy, alkoxycarbonyl, alkenoxy, cyano or nitro group; R.sub.3 and R.sub.4 each independently represents a hydrogen atom or an alkyl group; R.sub.5 represents a hydrogen atom, or an alkyl, alkoxy or alkoxycarbonylalkyl group; X and Y each independently represents an oxygen or sulphur atom or a group N-R, in which R is a hydrogen atom or an alkyl group; n is 0-3; r is 0 or 1; m is 0-4; and A or B represents a group of the general formula: wherein R.sub.6 represents a hydrogen or halogen atom, or an alkyl group; and R represents a halogen atom or an alkyl group; the other of A and B being a hydrogen atom or as for R.sub.1 or R.sub.2, have useful pesticidal activity.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: May 18, 1993
    Assignee: Shell Research limited
    Inventors: Martin Anderson, Antony G. Brinnand, Roger E. Woodall
  • Diphydrothiazine derivatives
    Patent number: 4279903
    Abstract: Certain dihydrothiazine derivatives, useful as anthelmintics and insecticides.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: July 21, 1981
    Assignee: Shell Oil Company
    Inventors: Martin Anderson, Roger E. Woodall
  • 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 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