Patents by Inventor Ling-zhi Tang

Ling-zhi Tang 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).

  • Process of making theaflavins enriched tea extract
    Publication number: 20090092690
    Abstract: This invention provides various products and processes such as a process of making a theaflavins enriched extract of tea having a low content of high molecular weight thearubigins which comprises extracting theaflavins from tea using ethanol to produce an extract having a high theaflavins content and a low content of high molecular weight thearubigins.
    Type: Application
    Filed: July 24, 2008
    Publication date: April 9, 2009
    Inventors: Hsiu Wei Yang, Shiming Li, Bu-xiang Sun, Ling-zhi Tang, Bo-feng Wu, Zhi-hui Wang, Zhen-peng Chen