Patents Represented by Attorney M. B. Davey

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  • Pyrazolo[1,5-a]pyrimidine-2-sulfide compounds
    Patent number: 5021591
    Abstract: Novel substituted pyrazolo[1,5-a]pyrimidine-2-sulfonamide compounds, such as 3-cyano-5,7-dimethyl-N-2,6-dichlorophenylpyrazolo[1,5-a]pyrimidine-2-su lfonamide, were prepared by the condensation of novel substituted 2-benzylthiopyrazolo[1,5-a]pyrimidine compounds, such as 2-benzylthio-5,7-dimethylpyrazolo[1,5-a]pyrimidine, and substituted anilines and found to be useful as herbicides.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: June 4, 1991
    Assignee: The Dow Chemical Company
    Inventors: Anna P. Vinogradoff, William A. Kleschick
  • Coated nutrients and medicaments for veterinary use
    Patent number: 4199561
    Abstract: An imidazoline modified styrene-acrylonitrile polymer composition which is substantially insoluble in aqueous media at about pH 6 or more but swellable or soluble at pH 3 or less is employed as a coating for nutrient or therapeutic substances for administration to ruminants. The substances thus are rendered resistant to attack and breakdown in the rumen yet remain susceptible to release and digestion within the abomasum or small intestine of the animal.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: April 22, 1980
    Assignee: The Dow Chemical Company
    Inventors: Harold H. Roth, Peter W. Owen, Thomas T. Chiu