Patents Represented by Attorney Estelle J. Tsevods

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  • Novel 23-imino derivatives of 23-keto compounds
    Patent number: 4886784
    Abstract: The present invention relates to novel 23-imino derivatives of the compounds collectively referred to as 23-keto C-076 compounds. The C-076 compounds (collectively) are isolates from the fermentation broth of Streptomyces avermitilis. These novel compounds have potent anthelmintic, insecticidal, ectoparasiticidal, nematicidal and acaricidal activity. Compositions containing these 23-imino derivatives of 23-keto C-076 also are described herein.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: December 12, 1989
    Assignee: American Cyanamid Company
    Inventors: Goro Asato, Donald J. France
  • Novel insecticidal dibenzoyl-tert-butylcarbazonitrile compounds and method for the preparation thereof
    Patent number: 4857550
    Abstract: The present invention provides novel insecticidal dibenzoyl-tert-butylcarbazonitrile compounds and a method for the preparation thereof. It also provides methods for controlling insects with said dibenzoyl-tert-butylcarbazonitrile compounds and for protecting growing plants, crops, trees, shrubs and ornamentals, from attack by said insects.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: August 15, 1989
    Assignee: American Cyanamid Company
    Inventors: Vekataraman Kameswaran, Donald P. Wright, Jr., Rod A. Herman