Patents Assigned to Yuan da International Group Limited
  • Beta-elemene, method to prepare the same and uses thereof
    Patent number: 6464839
    Abstract: This invention provides an anti-cancer composition of high purity beta-elemene extracted from plant sources. This invention also provides for the use of the composition as well as a low cost method to prepare it by multiple passes through the precision distillation tower.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: October 15, 2002
    Assignee: Yuan da International Group Limited
    Inventors: Yuren Chen, Xiu Ying Wu