Patents by Inventor Hsueh-O Chang

Hsueh-O Chang 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).

  • Chitosans
    Patent number: 6890913
    Abstract: A chitosan having a weight average molecular weight of 50,000-140,000 g/mole and a degree of deacetylation of 85-95%. Also disclosed are a method of preparing a chitosan from a fungus, and a method of using a chitosan for treating breast or cervical cancer.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 10, 2005
    Assignee: Food Industry Research and Development Institute
    Inventors: Hing-Yuen Chan, Mei-Huei Chen, Su-Hui Chuang, Hsueh-O Chang, Shu-Wan Wang, Jian-Chyi Chen, Shiaw-Min Hwang, Gwo-Fang Yuan
  • Novel chitosans
    Publication number: 20040167323
    Abstract: A chitosan having a weight average molecular weight of 50,000-140,000 g/mole and a degree of deacetylation of 85-95%. Also disclosed are a method of preparing a chitosan from a fungus, and a method of using a chitosan for treating breast or cervical cancer.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 26, 2004
    Inventors: Hing-Yuen Chan, Mei-Huei Chen, Su-Hui Chuang, Hsueh-O Chang, Shu-Wan Wang, Jian-Chyi Chen, Shiaw-Min Hwang, Gwo-Fang Yuan