Patents by Inventor Iljeong Heo

Iljeong Heo 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).

  • CATALYST FOR CONVERTING NITROGEN OXIDE INTO AMMONIA AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20130303364
    Abstract: Disclosed is a catalyst for converting nitrogen oxide into ammonia, which is capable of converting nitrogen oxide into ammonia under fuel lean exhaust gas conditions of more than theoretical air-fuel ratio (A/F=14.7), and a method for manufacturing the same. The catalyst according to the present invention comprises a metal oxide support impregnated with a precious metal, such that conversion of nitrogen oxide into ammonia under fuel lean exhaust gas conditions of more than theoretical air-fuel ratio (A/F=14.7) is possible.
    Type: Application
    Filed: August 23, 2012
    Publication date: November 14, 2013
    Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Choung, In-Sik Nam, Dal Young Yoon, Iljeong Heo
  • Oxidation catalysts for engines producing low temperature exhaust streams
    Patent number: 8479493
    Abstract: The oxidation of carbon monoxide (CO) and hydrocarbons (HC) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean-burn engine, may be catalyzed using a combination of mixed oxide particles of cerium, zirconium and copper, and discrete particles of an alumina-supported platinum group metal catalyst. The catalyzed oxidation of CO and HC by this combination of oxidation catalyst particles is effective at temperatures below 300° C.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 9, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Chang H Kim, Iljeong Heo, Se H. Oh, Wei Li, Michelle H Schmid
  • OXIDATION CATALYSTS FOR ENGINES PRODUCING LOW TEMPERATURE EXHAUST STREAMS
    Publication number: 20120291420
    Abstract: The oxidation of carbon monoxide (CO) and hydrocarbons (HC) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean-burn engine, may be catalyzed using a combination of mixed oxide particles of cerium, zirconium and copper, and discrete particles of an alumina-supported platinum group metal catalyst. The catalyzed oxidation of CO and HC by this combination of oxidation catalyst particles is effective at temperatures below 300° C.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 22, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chang H. Kim, Iljeong Heo, Se H. Oh, Wei Li, Michelle H. Schmid