Patents by Inventor Helen Hei Ling Chan

Helen Hei Ling Chan 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).

  • Herbal powder extracts and methods of preparing and using the same
    Patent number: 7829098
    Abstract: Methods for preparing an herbal powder extract from a polysaccharide-peptide rich mushroom, including Coriolus versicolor (Yunzhi), are disclosed. A more effective, highly pure Yunzhi powder extract, methods of preparing and using the same in ameliorating cancerous cell proliferations and hepatitis and are also disclosed.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: November 9, 2010
    Assignee: Vita Green Health Products Co., Ltd
    Inventors: Helen Hei Ling Chan, Clara Bik San Lau, Moses Sing Sum Chow