Patents Represented by Attorney William T. Black

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  • Herbicidal N-substituted triesters of N-phosphonomethylglycine
    Patent number: 4261727
    Abstract: This disclosure relates to novel N-substituted triesters of N-phosphonomethylglycine which are useful as herbicides. This disclosure further relates to herbicidal compositions containing such N-substituted N-phosphonomethylglycinates and to herbicidal methods employing such compounds and compositions.
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: April 14, 1981
    Assignee: Monsanto Company
    Inventor: Gerard A. Dutra
  • Herbicidal ester derivatives of N-arylthio-N-phosphonomethylglycinonitrile
    Patent number: 4252554
    Abstract: This disclosure relates to novel ester derivatives of N-arylthio-N-phosphonomethylglycinonitrile which are useful as herbicides. This disclosure further relates to herbicidal compositions containing such N-phosphonomethylglycinonitriles and to herbicidal methods employing such compounds and compositions.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: February 24, 1981
    Assignee: Monsanto Company
    Inventors: Gerard A. Dutra, James A. Sikorski
  • N-(Substituted carbonyl) derivatives of N-phosphinylmethylglycinates and the herbicidal use thereof
    Patent number: 4251258
    Abstract: This disclosure relates to N-(substituted carbonyl) triester derivatives of N-phosphinylmethylglycine wherein a substituted thiocarbonyl, RS(CO)--, a substituted sulfinylcarbonyl, ##STR1## or a substituted sulfonyl carbonyl, ##STR2## group is bonded to the nitrogen atom, to herbicidal compositions containing the same and to the herbicidal use thereof.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: February 17, 1981
    Assignee: Monsanto Company
    Inventor: Robert J. Kaufman
  • 5-Aryl-4-isoxazolecarboxylate-safening agents
    Patent number: 4243406
    Abstract: The invention relates to the safening of crop plants to the use of herbicides using a 5-aryl-4-isoxazolecarboxylate or composition containing such compounds to reduce the herbicidal injury to treated crop plants. The invention is also concerned with novel compositions which comprise an acetanilide herbicide and a 5-aryl-4-isoxazolecarboxylate.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: January 6, 1981
    Assignee: Monsanto Company
    Inventors: Lawrence H. Brannigan, John E. Franz, David E. Schafer
  • Ethanimidothioic (.alpha.-diaryloxyphosphinylmethylamino) acid ester hydrochlorides, herbicidal composition and herbicidal use thereof
    Patent number: 4238218
    Abstract: This disclosure relates to ethanimidothioic acid ester hydrochlorides. More particularly, this disclosure relates to novel (.alpha.-diaryloxyphosphinylmethylamino) ethanimidothioic hydrocarbon ester hydrochlorides, herbicidal compositions containing such thioimidate hydrochlorides and the herbicidal use thereof.
    Type: Grant
    Filed: June 6, 1978
    Date of Patent: December 9, 1980
    Assignee: Monsanto Company
    Inventors: Gerard A. Dutra, James A. Sikorski
  • N-Carbobenzoxy-N-phosphonomethylglycine thioesters
    Patent number: 4231782
    Abstract: This disclosure relates to N-phosphonomethylglycine derivatives wherein a benzoxycarbonyl group is attached to the nitrogen and alkoxy, alkenylthio, alkylthio, phenylalkylthio, phenylthio or substituted phenylthio groups are attached to the phosphorus atom and alkyl, chloroalkyl, alkoxyalkyl or alkoxyalkoxyalkyl groups are attached to the carboxyl group of the molecule. These compounds are useful as herbicides.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: November 4, 1980
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • N-Phosphonomethylglycine thioester herbicides
    Patent number: 4226611
    Abstract: This disclosure relates to a new class of organic chemical compounds. More particularly, this disclosure is concerned with novel thioester derivatives of N-phosphonomethylglycine wherein alkylthio or substituted alkylthio groups are bonded to the phosphorus atom. This class of compounds has been found to display desirable herbicidal activity when applied to certain varieties of weeds or undesired plants.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: October 7, 1980
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • Ester derivatives of n-trifluoroacetyl-n-phosphonomethylglycine and the herbicidal use thereof
    Patent number: 4218235
    Abstract: This disclosure relates to ester derivatives of N-trifluoroacetyl-N-phosphonomethylglycine, to herbicidal compositions containing same and to the herbicidal use thereof. The ester derivatives of N-trifluoroacetyl-N-phosphonomethylglycine are useful as herbicides.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: August 19, 1980
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • Esters of N-phosphinothioylmethylglycine and herbicidal method
    Patent number: 4211548
    Abstract: This disclosure relates to a new class of organic chemical compounds. More particularly, this disclosure is concerned with ester derivatives of N-phosphinothioylmethylglycine wherein the phosphorus atom is attached to a divalent sulfur atom and the strong acid salts thereof. This class of compounds has been found to display desirable herbicidal activity when applied to certain varieties of weeds or undesired plants.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: July 8, 1980
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • N-Carbobenzoxy-N-phosphinothioylmethylgylcine esters
    Patent number: 4211732
    Abstract: This invention relates to a new class of organic chemical compounds. More particularly, this invention is concerned with ester derivatives of N-carbobenzoxy-N-phosphinothioylmethylglycine. This class of compounds has been found to be useful as intermediates in producing N-phosphinothioylmethylglycine esters which show herbicidal activity. Some of the class of compounds of this invention also show herbicidal activity when applied to certain varieties of weeds or undesired plants.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: July 8, 1980
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • Derivatives of N-trifluoroacetyl-N-phosphonomethylglycine dichloride
    Patent number: 4199345
    Abstract: This disclosure relates to N-trifluoroacetyl-N-phosphonomethylglycine dichloride derivatives and to herbicidal compositions containing same. The N-trifluoroacetyl-N-phosphonomethylglycine dichlorides are useful as post-emergent herbicides.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: April 22, 1980
    Assignee: Monsanto Company
    Inventor: John E. Franz
  • N-Trifluoroacetyl-N-phosphinothioylmethylglycine esters
    Patent number: 4195983
    Abstract: This invention relates to a new class of organic chemical compounds. More particularly, this invention is concerned with ester derivatives of N-trifluoroacetyl-N-phosphinothioylmethylglycine. This class of compounds has been found to be useful as intermediates in producing N-phosphinothioylmethylglycine esters which show herbicidal activity. Some of the class of compounds of this invention also show herbicidal activity when applied to certain varieties of weeds or undesired plants.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: April 1, 1980
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • Derivatives of N-trifluoroacetyl-N-phosphonomethylglycinates and the herbicidal use thereof
    Patent number: 4180394
    Abstract: This disclosure relates to derivatives of N-trifluoroacetyl-N-phosphonomethylglycinates wherein different moieties are attached to the phosphorus atom, to herbicidal compositions containing same and to the herbicidal use thereof.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: December 25, 1979
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • Thio derivatives of N-trifluoroacetyl-N-phosphonomethylglycine
    Patent number: 4175946
    Abstract: This disclosure relates to thio derivatives of N-trifluoroacetyl-N-phosphonomethylglycine esters, to herbicidal compositions containing same and to the herbicidal use thereof. The thio derivatives of N-trifluoroacetyl-N-phosphonomethylglycine esters are useful as herbicides.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: November 27, 1979
    Assignee: Monsanto Company
    Inventors: John E. Franz, Robert J. Kaufman
  • Corrosion inhibited agricultural compositions
    Patent number: 4159901
    Abstract: Corrosion of metal surfaces contacted by aqueous agricultural compositions containing as an active ingredient an aminomethylenephosphonic acid, such as N-phosphonomethylglycine or an agriculturally acceptable salt or ester thereof is inhibited by the inclusion in the compositions of an inhibiting amount of a thiol compound or salt thereof.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: July 3, 1979
    Assignee: Monsanto Company
    Inventors: George B. Beestman, Erhard J. Prill
  • Dicyanovinylhydrazonomalononitriles and the herbicidal use thereof
    Patent number: 4115104
    Abstract: Dicyanovinylhydrazonomalononitriles are described as well as a process for producing same. These malononitriles are useful as herbicides.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: September 19, 1978
    Assignee: Monsanto Company
    Inventor: John E. Franz
  • Phosphinylmethylimino-acetic acid N-oxide compounds and the sucrose increasing use thereof
    Patent number: 4110100
    Abstract: This disclosure relates to phosphinylmethylimino-acetic acid N-oxide compounds and to sucrose increasing compositions and methods. The compounds and compositions are useful as sucrose increasing agents when applied to sugar cane prior to harvesting.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: August 29, 1978
    Assignee: Monsanto Company
    Inventors: John E. Franz, Reuven M. Sacher
  • Acetimidic (.alpha.-diaryloxyphosphinylmethylamino) acid ester hydrochlorides, herbicidal composition and herbicidal use thereof
    Patent number: 4104050
    Abstract: This disclosure relates to acetimidic acid ester hydrochlorides. More particularly, this disclosure relates to novel (.alpha.-diaryloxyphosphinylmethylamino) acetimidic hydrocarbon ester hydrochloride, herbicidal compositions containing such acetimidic hydrochloride and the herbicidal use thereof.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: August 1, 1978
    Assignee: Monsanto Company
    Inventor: Gerard A. Dutra
  • Carbonylaldiminomethanephosphonates
    Patent number: 4094928
    Abstract: Carbonylaldiminomethanephosphonates are produced by the reaction of glyoxal or glyoxylic acid esters with aminomethylphosphonic acid esters. The carbonylaldiminomethanephosphonates can then be reduced and hydrolyzed or reduced and oxidized to yield N-(phosphonomethyl)glycine which is useful as a post-emergent herbicide.
    Type: Grant
    Filed: July 29, 1977
    Date of Patent: June 13, 1978
    Assignee: Monsanto Company
    Inventor: Van Russell Gaertner
  • N-hydroxy-N-phosphonomethylglycines and the herbicidal use thereof
    Patent number: 4084953
    Abstract: This disclosure relates to N-hydroxy-N-phosphonomethylglycine and the herbicidally acceptable salts thereof which are useful as herbicides to control undesired plants.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: April 18, 1978
    Assignee: Monsanto Company
    Inventor: John E. Franz