Patents Represented by Attorney H. Robinson Estell

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  • 1R,Cis-3-(2-halo-3,3,3-trifluoro-1-propenyl)-2,2-di methylcyclopropanecarboxylic acid derivatives
    Patent number: 4395567
    Abstract: 1R,cis-trifluoromethylethenylcyclopropanecarbonyl compounds of the formula ##STR1## in which X is halogen and R is halogen, hydroxy, lower alkoxy or an optionally substituted 1,1'-biphenyl-3-methyloxy group, their method of preparation and utility as insecticides and intermediates therefore are described and exemplified.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: July 26, 1983
    Assignee: FMC Corporation
    Inventor: John F. Engel