Patents by Inventor Duckho Lee

Duckho Lee 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).

  • Heat exchanger
    Patent number: 7637314
    Abstract: The present invention relates to a heat exchanger for carbon dioxide, in which a tank having a number of domes is coupled with a header and a connection member having a connection flow channel is interposed between the header and the tank, thereby easily changing a refrigerant flow channel, reducing the volume of a header tank, and improving productivity, pressure resistance and durability.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: December 29, 2009
    Assignee: Halla Climate Control Corporation
    Inventors: Taeyoung Park, Kwangheon Oh, Duckho Lee
  • Heat exchanger
    Publication number: 20080105419
    Abstract: The present invention relates to a heat exchanger, which restricts a gap between a tube insertion hole formed on a header pipe for allowing both ends of a tube to inserted and combined thereto and the tube within a proper range, thereby making the manufacturing of the header pipes and the coupling of the tubes to the header pipe easy and preventing cracks and leak to improve durability.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 8, 2008
    Inventors: Kwangheon Oh, Duckho Lee, Hongyoung Lim
  • Heat exchanger
    Publication number: 20060162917
    Abstract: The present invention relates to a heat exchanger for carbon dioxide, in which a tank having a number of domes is coupled with a header and a connection member having a connection flow channel is interposed between the header and the tank, thereby easily changing a refrigerant flow channel, reducing the volume of a header tank, and improving productivity, pressure resistance and durability.
    Type: Application
    Filed: January 26, 2006
    Publication date: July 27, 2006
    Inventors: Taeyoung Park, Kwangheon Oh, Duckho Lee