Patents by Inventor Dae Joon Yang

Dae Joon Yang 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).

  • Polyether amino acid ester compounds, preparation method and use thereof
    Patent number: 6053955
    Abstract: The present invention relates to polyether amino acid ester compounds, preparation method and their use as hydrocarbon fuel additives.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: April 25, 2000
    Assignee: SK Corporation
    Inventors: Byung Hyung Lee, Woo Sun Kim, Sang Chul Lim, Ho Young Kwon, Dae Joon Yang