Patents Represented by Attorney Donald W. Peterson

Find this attorney in the Justia Lawyer Directory

  • Process for preparing O-aryl, N-phosphonomethylglycinonitriles
    Patent number: 4083898
    Abstract: O-aryl N-phosphonomethylglycinonitriles having utility as herbicides are prepared by reacting in the absence of acidic catalysts 1,3,5-tricyanomethyl-hexahydro-1,3,5-triazine with a diaryl phosphite. The products can be hydrolyzed to form N-phosphonomethylglycine.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: April 11, 1978
    Assignee: Monsanto Company
    Inventor: Gerard A. Dutra
  • Certain benzothiazolin-2-one derivatives
    Patent number: 4075216
    Abstract: Compounds having the formula ##STR1## ARE FOUND TO BE EFFECTIVE PLANT GROWTH REGULANTS.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: February 21, 1978
    Assignee: Monsanto Company
    Inventor: John J. D'Amico
  • Use of pyridyl phthalimides as plant growth regulants
    Patent number: 4072499
    Abstract: Certain pyridyl phthalimides have been found to be effective in regulating the growth of leguminous plants.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: February 7, 1978
    Assignee: Monsanto Company
    Inventors: Frederic G. Bollinger, John J. D'Amico
  • O-Aryl N-phosphonomethylglycinonitriles and the herbicidal use thereof
    Patent number: 4067719
    Abstract: O-aryl N-phosphonomethylglycinonitriles are described as well as a process for producing same. These phosphonomethyl substituted glycinonitriles are useful as herbicides.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: January 10, 1978
    Assignee: Monsanto Company
    Inventor: Gerard A. Dutra
  • Plant growth regulators
    Patent number: 4066435
    Abstract: A novel class of ortho or meta-alkoxycarbonylbenzyltrialkylphosphonium salts are prepared and demonstrate useful plant growth regulation when applied to desirable plants. Representative of this class of compounds is m-methoxycarbonylbenzyltributylphosphonium bromide.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: January 3, 1978
    Assignee: Monsanto Company
    Inventor: Robert K. Howe
  • N-(2-hydroxyalkyl) derivatives of N-phosphonomethylglycine for treatment of sugarcane
    Patent number: 4063922
    Abstract: Certain N-(2-hydroxyalkyl) derivatives of N-phosphonomethylglycine have been found to be useful in the treatment of sugarcane plants to increase their sucrose content.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: December 20, 1977
    Assignee: Monsanto Company
    Inventors: Van R. Gaertner, Philip C. Hamm
  • N-Organo-N-phosphonomethylglycine-N-oxides and plant growth regulant and phytotoxicant compositions containing same
    Patent number: 4062669
    Abstract: This disclosure relates to N-organo-N-phosphonomethylglycine-N-oxides and derivatives thereof, to processes for producing same, and to herbicidal compositions and herbicidal methods. These compounds and the compositions containing them are useful as phytotoxicants or herbicides and as plant growth regulants.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: December 13, 1977
    Assignee: Monsanto Company
    Inventor: John E. Franz
  • Herbicidal composition and method of use
    Patent number: 4055414
    Abstract: The disclosure herein relates to 2-halo-N-(N.sup.1 -hydrocarbyloxyoxalyl-N.sup.1 -acylaminomethyl)-2',6'-dialkylacetanilides, to a process for preparing these compounds, herbicidal compositions containing same and method of use to selectively control undesired vegetation in agricultural crops, e.g., monocotyledons such as wheat, sorghum and rice and dicotyledons such as sugarbeets and soybeans.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: October 25, 1977
    Assignee: Monsanto Company
    Inventor: John P. Chupp
  • Alkoxycarbonylbenzyltrialkylphosphonium salts
    Patent number: 4053501
    Abstract: A novel class of ortho or meta-alkoxycarbonylbenzyltrialkylphosphonium salts are prepared and demonstrate useful plant growth regulation when applied to desirable plants. Representative of this class of compounds is m-methoxycarbonylbenzyltributylphosphonium bromide.
    Type: Grant
    Filed: April 3, 1973
    Date of Patent: October 11, 1977
    Assignee: Monsanto Company
    Inventor: Robert K. Howe
  • Preparation of n-phosphonomethyl glycine
    Patent number: 4053505
    Abstract: A herbicidal compound N-phosphonomethyl glycine is prepared by (a) reacting 1,3,5-tricarbohydrocarbonoxymethyl hexahydrotriazine with a di-monovalent hydrocarbon phosphite to form an ester of N-phosphonomethyl glycine which is thereafter (b) hydrolyzed and the N-phosphonomethyl glycine is recovered.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: October 11, 1977
    Assignee: Monsanto Company
    Inventor: Gerard A. Dutra
  • Use of benzothiazoline compounds as plant growth regulants
    Patent number: 4049419
    Abstract: Certain benzothiazoline compounds are found to have plant growth regulation activity on leguminous plants.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: September 20, 1977
    Assignee: Monsanto Company
    Inventor: John J. D'Amico
  • N-(2-hydroxyalkyl) derivatives of N-phosphonomethylglycine and the herbicidal use thereof
    Patent number: 4047927
    Abstract: Certain N-(2-hydroxyalkyl) derivatives of N-phosphonomethylglycine have been found to be useful as herbicides for the treatment of undesired plants.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: September 13, 1977
    Assignee: Monsanto Company
    Inventors: Van R. Gaertner, Philip C. Hamm
  • Treatment of sugarcane with N-(perfluoroacyl)-N-phosphonomethyl glycine
    Patent number: 4047926
    Abstract: N-(perfluoroacyl)-N-phosphonomethyl glycine compounds are prepared by the reaction of N-phosphonomethyl glycine with perfluoroacyl anhydrides employing an excess of the perfluoroalkanoic acid as the solvent. The N-(perfluoroacyl)-N-phosphonomethyl glycine compounds are useful as post-emergent herbicides and as sugar cane ripeners.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: September 13, 1977
    Assignee: Monsanto Company
    Inventor: Melvin L. Rueppel
  • Synergistic herbicidal composition comprising N-(butoxymethyl)-6'-tert-butyl-2-chloro-o-acetotoluidide and methabenzthiazuron
    Patent number: 4045206
    Abstract: A synergistic herbicidal composition comprising as the active ingredient a mixture of N-(butoxymethyl)-6'-tert-butyl-2-chloro-o-acetotoluidide and N-(2-benzthiazolyl)-N,N'-dimethylurea and use of said composition particularly in cereal crops.
    Type: Grant
    Filed: August 18, 1975
    Date of Patent: August 30, 1977
    Assignee: Monsanto Company
    Inventor: Bernard Convent
  • Synergistic herbicidal composition comprising N-(butoxymethyl)-6'-tert-butyl-2-chloro-o-acetotoluidide and N-(3-chloro-4-methyl phenyl)-N',N'-dimethylurea
    Patent number: 4045210
    Abstract: A synergistic herbicidal composition comprising as the active ingredient a mixture of N-(butoxymethyl)-6'-tert-butyl-2-chloro-o-acetotoluidide and N-(3-chloro-4-methyl phenyl)-N',N'-dimethylurea (common name chlortoluron) and use of said composition particularly in cereal crops.
    Type: Grant
    Filed: August 18, 1975
    Date of Patent: August 30, 1977
    Assignee: Monsanto Company
    Inventor: Bernard Convent
  • Synergistic herbicidal composition comprising N-(butoxymethyl)-6'-tert-butyl-2-chloro-o-acetotoluidide and pyrazon
    Patent number: 4045207
    Abstract: A synergistic herbicidal composition comprising as the active ingredient a mixture of N-(butoxymethyl)-6'-tert-butyl-2-chloro-o-acetotoluidide and 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone and use of said composition in sugarbeets.
    Type: Grant
    Filed: August 18, 1975
    Date of Patent: August 30, 1977
    Assignee: Monsanto Company
    Inventor: Bernard Convent
  • N-(perfluoroacyl)-N-phosphonomethyl glycine compounds, method of preparing same
    Patent number: 4035176
    Abstract: N-(perfluoroacyl)-N-phosphonomethyl glycine compounds are prepared by the reaction of N-phosphonomethyl glycine with perfluoroacyl anhydrides employing an excess of the perfluoroalkanoic acid as the solvent. The N-(perfluoroacyl)-N-phosphonomethyl glycine compounds are useful as post-emergent herbicides and as sugar cane ripeners.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: July 12, 1977
    Assignee: Monsanto Company
    Inventor: Melvin L. Rueppel
  • Herbicidal N-thiolcarbonyl derivatives of N-phosphonomethylglycine
    Patent number: 4035177
    Abstract: Certain N-thiolcarbonyl derivatives of N-phosphonomethylglycine are novel chemical compounds having desirable herbicidal activity.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: July 12, 1977
    Assignee: Monsanto Company
    Inventor: Van R. Gaertner
  • Preparation of dialkyl phosphorochloridothioates
    Patent number: 4025586
    Abstract: This invention relates to a method of preparing dialkyl phosphorochloridothioates in which unconverted bis-(thiophosphono)sulfide is washed and returned to the chlorinator.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: May 24, 1977
    Assignee: Monsanto Company
    Inventor: Alfred E. Lippman
  • Increasing sucrose content of sugarcane plants with N-phosphonomethylglycinamides
    Patent number: 4025332
    Abstract: N-phosphonomethylglycinamides have been found to be useful in the treatment of sugarcane plants to increase their sucrose content.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: May 24, 1977
    Assignee: Monsanto Company
    Inventor: John E. Franz