Patents by Inventor Michael J. Ricks

Michael J. Ricks 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).

  • Method for converting carboxylic acid groups to trichloromethyl groups
    Patent number: 4419514
    Abstract: Method for converting carboxylic acid groups to trichloromethyl groups which comprises contacting a compound containing a carboxylic acid group with a phenylphosphonic dichloride and phosphorus pentachloride and recovering the thus produced product.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: December 6, 1983
    Assignee: The Dow Chemical Company
    Inventors: Lennon H. McKendry, Michael J. Ricks, Richard B. Rogers
  • Substituted phenoxy and phenylthio picolinaldehydes
    Patent number: 4281133
    Abstract: Substituted phenoxy and phenylthio picolinaldehydes are prepared which correspond to the formula: ##STR1## wherein X independently represents alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, trifluoromethyl, 3,4-methylenedioxy, chloro, fluoro or bromo; n represents an integer of 0 to 2 and Y represents oxygen or sulfur. These compounds are employed as intermediates in the preparation of compounds which have a high degree of insecticidal activity.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: July 28, 1981
    Assignee: The Dow Chemical Company
    Inventors: Sudarshan K. Malhotra, Michael J. Ricks
  • Substituted phenoxy and phenylthio pyridine methanols and substituted methanols
    Patent number: 4256893
    Abstract: Substituted phenoxy and phenylthio pyridine methanols and substituted methanols are prepared which correspond to the formula: ##STR1## wherein X independently represents alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, trifluoromethyl, 3,4-methylenedioxy, chloro, fluoro or bromo; n represents an integer of 0 to 2; Y represents oxygen or sulfur and R represents hydrogen, cyano or ethynyl. These compounds are employed as intermediates in the preparation of compounds which have a high degree of insecticidal activity.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: March 17, 1981
    Assignee: The Dow Chemical Company
    Inventors: Sudarshan K. Malhotra, Michael J. Ricks
  • Substituted pyridine methyl esters of cyclopropane carboxylic acids and their use as insecticides
    Patent number: 4163787
    Abstract: Substituted pyridine methyl esters of cyclopropane carboxylic acids and the geometric and optical isomers thereof are prepared which correspond to the formula: ##STR1## wherein X independently represents alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, trifluoromethyl, 3,4-methylenedioxy, chloro, fluoro or bromo; n represents an integer of 0 to 2; Y represents oxygen or sulfur; R represents hydrogen, cyano or ethynyl and Z represents chloro, fluoro or bromo. These compounds have been found to exhibit a high degree of insecticidal activity and compositions containing said compounds are so employed.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: August 7, 1979
    Assignee: The Dow Chemical Company
    Inventors: Sudarshan K. Malhotra, Michael J. Ricks