Patents by Inventor Won Hong Choo

Won Hong Choo 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 for preparing granular sodium percarbonate
    Publication number: 20040161378
    Abstract: The present invention relates to a process for preparing granular sodium percarbonate.
    Type: Application
    Filed: May 28, 2003
    Publication date: August 19, 2004
    Applicant: DC CHEMICAL CO., LTD.
    Inventors: Won Hong Choo, Yong Il Kim, Young Ho Chang, Yun Yong Song, Sang Ho Chung