Patents by Inventor Myung Joo KO

Myung Joo KO 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 polyactic acid
    Patent number: 10487174
    Abstract: The present invention relates to a method for preparing polylactic acid. According to the method for preparing polylactic acid, high quality polylactic acid can be provided by effectively removing residual monomers while minimizing property changes of the polylactic acid.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 26, 2019
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Hyun A Kim, Myung Joo Ko, Jong Won Kang
  • METHOD FOR PREPARING POLYLACTIC ACID
    Publication number: 20180230266
    Abstract: The present invention relates to a method for preparing polylactic acid. According to the method for preparing polylactic acid, high quality polylactic acid can be provided by effectively removing residual monomers while minimizing property changes of the polylactic acid.
    Type: Application
    Filed: August 10, 2016
    Publication date: August 16, 2018
    Inventors: Hyun A KIM, Myung Joo KO, Jong Won KANG