Patents by Inventor Dong-Kwang Jang

Dong-Kwang Jang 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).

  • Method for Purifying Hyaluronic Acid Using Calcium Salt and Phosphate Salt, or Calcium Phosphate Salt
    Publication number: 20080194810
    Abstract: The present invention relates to a method for purifying hyaluronic acid using calcium salt and phosphate salt, or calcium phosphate salt, specifically to a method for purifying hyaluronic acid characterized by effectively removing lipids, nucleic acids and proteins from an extract or a culture solution which contains hyaluronic acid by treating with calcium salt and phosphate salt, or calcium phosphate salt. According to the method of the present invention, it is possible to purify hyaluronic acid more effectively, by avoiding a use of toxic organic materials as well as reducing additional processes.
    Type: Application
    Filed: June 15, 2005
    Publication date: August 14, 2008
    Applicant: T & LIFE SYSTEM CO., LTD.
    Inventors: Tai-Hyo Kim, Hui-Lee Kim, Sun-Young Park, Dong-Kwang Jang