Patents by Inventor Tae Hun Yeon

Tae Hun Yeon 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 and apparatus for reducing exhaust gas including hydrocarbons during initial cold start period
    Patent number: 7895825
    Abstract: Disclosed herein is a method and apparatus for reducing exhaust gases in an initial cold start period, in which a main catalyst unit is connected to an engine through an exhaust pipe, including the steps of receiving signals for stopping engine operation from an engine, and removing engine exhaust gases remaining in an exhaust pipe located at an inlet of a main catalyst unit.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: March 1, 2011
    Assignee: Heesung Engelhard Corporation
    Inventors: Hee Chun Kang, Tae-Woo Lee, Eun-Seok Kim, Hyun-Sik Han, Tae Hun Yeon
  • Method and apparatus for reducing exhaust gas including hydrocarbons during initial cold start period
    Publication number: 20070245717
    Abstract: Disclosed herein is a method and apparatus for reducing exhaust gases in an initial cold start period, in which a main catalyst unit is connected to an engine through an exhaust pipe, including the steps of receiving signals for stopping engine operation from an engine, and removing engine exhaust gases remaining in an exhaust pipe located at an inlet of a main catalyst unit.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 25, 2007
    Inventors: Hee Chun Kang, Tae-Woo Lee, Eun-Seok Kim, Hyun-Sik Han, Tae Hun Yeon