Patents by Inventor Hongyu Zhnag

Hongyu Zhnag 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).

  • Fungicidal composition containing PQDs
    Patent number: 6936571
    Abstract: The present invention provides an agricultural fungicidal composition containing active compounds selected from perylenequinonoid derivatives or salts thereof. The invention also relates the application of the composition against fungal plant infections.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: August 30, 2005
    Inventors: Hongyu Zhnag, Weizhong Liu
  • Fungicidal composition containing PQDs
    Publication number: 20030216478
    Abstract: The present invention provides an agricultural fungicidal composition containing active compounds selected from perylenequinonoid derivatives or salts thereof. The invention also relates the application of the composition against fungal plant infections.
    Type: Application
    Filed: October 21, 2002
    Publication date: November 20, 2003
    Inventors: Hongyu Zhnag, Weizhong Liu