Patents by Inventor Tongmei Zhang

Tongmei Zhang 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).

  • Extraction method for C. J. Tseng leaves, total saponins and use thereof
    Patent number: 9109003
    Abstract: The present invention provides an extraction method for the leaves of Ilex kudingcha C. J. Tseng, and the total saponins from I. kudingcha leaves extracted by using this method, and use of the total saponins in preparing a drug for reducing cholesterol and blood lipids and anti-atherosclerosis. The extraction method comprises the following steps: subjecting I. kudingcha leaves to refluxing extraction with ethanol aqueous solution to obtain an extracted solution; filtering the extracted solution and removing ethanol, and then separating and purifying the solution using a macroporous resin column.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: August 18, 2015
    Assignee: Peking University
    Inventors: Pengfei Tu, Tongmei Zhang, Jiao Zheng, Yong Jiang, Haiyan Zhou, Li Tang, Zhizhong Ma
  • EXTRACTION METHOD FOR ILEX KUDINGCHA C. J. TSENG LEAVES, TOTAL SAPONINS AND USE THEREOF
    Publication number: 20130303469
    Abstract: The present invention provides an extraction method for the leaves of Ilex kudingcha C. J. Tseng, and the total saponins from I. kudingcha leaves extracted by using this method, and use of the total saponins in preparing a drug for reducing cholesterol and blood lipids and anti-atherosclerosis. The extraction method comprises the following steps: subjecting I. kudingcha leaves to refluxing extraction with ethanol aqueous solution to obtain an extracted solution; filtering the extracted solution and removing ethanol, and then separating and purifying the solution using a macroporous resin column.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 14, 2013
    Inventors: Pengfei Tu, Tongmei Zhang, Jiao Zheng, Yong Jiang, Haiyan Zhou, Li Tang, Zhizhong Ma