Patents by Inventor Pyoung Ho Choi

Pyoung Ho 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).

  • Process for preparing hydrocarbons
    Patent number: 5952540
    Abstract: This invention relates to a process for preparing hydrocarbons, in particular hydrogenation of carbon dioxide over Fe-K/Al.sub.2 O.sub.3 catalyst, which is reduced in hydrogen and activated in the mixture of carbon dioxide and hydrogen.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: September 14, 1999
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kyu Wan Lee, Myoung Jae Choi, Ki Won Jun, Pyoung Ho Choi, Soo Jae Lee