Patents by Inventor So-Yebrin Choi

So-Yebrin Choi 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).

  • Emitting Materials and Organic Light Emitting Device Using the Same
    Publication number: 20090021149
    Abstract: The present invention provides a novel light emitting material and an organic light emitting device using the same.
    Type: Application
    Filed: January 12, 2007
    Publication date: January 22, 2009
    Inventors: Kong-Kyeom Kim, Sung-Jin Yeo, So-Yebrin Choi, Hye-Young Jang