Patents by Inventor Chang Heon Koh

Chang Heon Koh 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 PREPARING HYDROXYALKYL STARCH
    Publication number: 20130225803
    Abstract: The present invention relates to a method for preparing hydroxyalkyl starch. The method for preparing hydroxyalkyl starch comprises the steps of hydrolyzing starch, reducing the hydrolyzed starch, and substituting the reduced starch with hydroxyalkyl group in a dry process.
    Type: Application
    Filed: November 23, 2011
    Publication date: August 29, 2013
    Applicant: SAMYANG GENEX CORPORATION
    Inventors: Pil Nam Hong, Chang Heon Koh