Patents by Inventor LIQIAN SHEN

LIQIAN SHEN 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).

  • Method for extracting dihydroquercetin from the root of larch trees
    Patent number: 9206152
    Abstract: The present invention provides a method for extracting dihydroquercetin from roots of larch trees in a specific region by utilizing a resource advantage that the roots (200 mm below the earth surface) of tree species has a relatively high content of dihydroquercetin. The method includes steps of: selecting raw material, processing, extracting, concentrating, hydrolyzing, further extracting and recrystallizing. The present invention has researched and established a process with optimized environmental protection and indexes to fill the gap in domestic industrialized extraction process by utilizing the resource advantage that the roots of tree species has relatively high content of dihydroquercetin.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: December 8, 2015
    Inventor: Liqian Shen
  • METHOD FOR EXTRACTING DIHYDROQUERCETIN FROM THE ROOT OF LARCH TREES
    Publication number: 20150225362
    Abstract: The present invention provides a method for extracting dihydroquercetin from roots of larch trees in a specific region by utilizing a resource advantage that the roots (200 mm below the earth surface) of tree species has a relatively high content of dihydroquercetin. The method includes steps of: selecting raw material, processing, extracting, concentrating, hydrolyzing, further extracting and recrystallizing. The present invention has researched and established a process with optimized environmental protection and indexes to fill the gap in domestic industrialized extraction process by utilizing the resource advantage that the roots of tree species has relatively high content of dihydroquercetin.
    Type: Application
    Filed: April 24, 2015
    Publication date: August 13, 2015
    Inventor: LIQIAN SHEN