Patents by Inventor Jong Sok Han

Jong Sok Han 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).

  • Patent number: 9375709
    Abstract: This invention relates to a catalyst system for selective oligomerization of ethylene, which includes (i) a chromium compound; (ii) a ligand having a P—C—C—P backbone structure; and (iii) an activator, thus preparing 1-hexene and/or 1-octene with high activity and selectivity.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 28, 2016
    Assignees: SK INNOVATION CO., LTD., SK GLOBAL CHEMICAL CO., LTD.
    Inventors: Tack Kyu Han, Min Seon Jung, Dong Chul Shin, Ho Seong Lee, Sung Seok Chae, Jong Sok Han
  • Publication number: 20150045603
    Abstract: This invention relates to a catalyst system for selective oligomerization of ethylene, which includes (i) a chromium compound; (ii) a ligand having a P—C—C—P backbone structure; and (iii) an activator, thus preparing 1-hexene and/or 1-octene with high activity and selectivity.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 12, 2015
    Inventors: Tack Kyu Han, Min Seon Jung, Dong Chul Shin, Ho Seong Lee, Sung Seok Chae, Jong Sok Han