Patents by Inventor Ji-Yong Ryu

Ji-Yong Ryu 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 and catalyst for the conversion of aromatic hydrocarbons
    Patent number: 4048248
    Abstract: Process for the conversion of aromatic hydrocarbons. Especially useful for reaction of an alkylating agent, preferably propylene, with an aromatic hydrocarbon. Novel feature is use of a catalyst system comprising TiF.sub.4 and a metal oxide which possesses surface hydroxyl groups.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: September 13, 1977
    Assignee: UOP Inc.
    Inventor: Ji-Yong Ryu
  • Oligomerization process and catalysts therefor
    Patent number: 4048109
    Abstract: Olefinic hydrocarbons containing from 2 to about 6 carbon atoms are oligomerized by treatment with a heterogeneous oligomerization catalyst which is prepared by reducing titanium tetrachloride supported on a Group IIIA metal oxide with hydrogen at an elevated temperature.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: September 13, 1977
    Assignee: UOP Inc.
    Inventor: Ji-Yong Ryu
  • Process for the conversion of aromatic hydrocarbons
    Patent number: 4048247
    Abstract: A process for the conversion of aromatic hydrocarbons is disclosed which is especially useful for reaction of an alkylating agent, preferably propylene, with an aromatic hydrocarbon. Novel feature is use of a catalyst system comprising TiCl.sub.4 and a Group III-A metal oxide.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: September 13, 1977
    Assignee: UOP Inc.
    Inventor: Ji-Yong Ryu