Patents by Inventor Liu Changling

Liu Changling 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).

  • Unsaturated oxime ethers and their use as fungicides and insecticides
    Patent number: 6177462
    Abstract: Compounds with fungicidal and insecticidal properties having formula wherein X is N or CH; Y is O, S or NR6; A is independently hydrogen, halo, cyano, (C1-C12)alkyl, or (C1-C12)alkoxy; R1 and R6 is independently hydrogen or (C1-C4)alkyl; R2 is independently hydrogen, (C1-C12)alkyl, halo(C1-C12)alkyl, (C3-C7)cycloalkyl, (C2-C8)alkenyl, halo(C2-C8)alkenyl, (C2-C8)alkynyl, halo(C2-C8)alkynyl, aryl, aralkyl, heterocyclic, or heterocyclic(C1-C4)alkyl; R3 is independently hydrogen or (C1-C4)alkyl; R4 and R5 is independently hydrogen, (C1-C4)alkyl, aryl, aralkyl, aryl(C2-C8)alkenyl, aryl(C2-C8)alkynyl, heterocyclic, or heterocyclic(C1-C4)alkyl wherein if one of R4 and R5 is hydrogen or (C1-C4)alkyl than the other of R4 and R5 is other than hydrogen or (C1-C4)alkyl, and its enantiomers and stereoisomers and agronomically acceptable salts.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: January 23, 2001
    Assignee: Rohm and Haas Company
    Inventors: Zhang Lixin, Li Zongcheng, Li Zhinian, Zhang Hong, Liu Changling, Li Bin, Steven Howard Shaber