Patents by Inventor Nak-Jook Jang

Nak-Jook Jang 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 of manufacturing vinylethylene carbonate
    Publication number: 20100048918
    Abstract: Provided is a method of manufacturing vinylethylene carbonate. The method includes synthesizing vinylethylene carbonate (VEC) by reaction of 3,4-dihydroxy-1-butene (3,4-DHB) and dialkyl carbonate using a base catalyst, and refining the VEC.
    Type: Application
    Filed: January 16, 2009
    Publication date: February 25, 2010
    Inventors: In-Soo Yeo, Byung-Won Woo, Seoung-Woo Yoon, Joo-Ho Lee, Soon-Hong Park, Nak-Jook Jang