Patents Examined by Mukuno Shah
  • Fused tricyclic compounds, process for their preparation, and herbicidal compositions containing them
    Patent number: 6770596
    Abstract: Novel fused tricyclic compounds represented by formula (I) are described. Q, Y, —L—X—, A, A′, B, E, D, n and m are as defined in the disclosure. Also described are the processes for the manufacture of these compounds and agriculturally suitable compositions containing these as active ingredients which are useful as herbicides for general or selective pre-emergent or post-emergent control of undesired plant species.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: August 3, 2004
    Assignee: Ishihara Sangyo Kaisha Ltd.
    Inventors: Sandeep Gupta, David A. Pulman, Bai-Ping Ying, Masamitsu Tsukamoto, Takahiro Haga