Patents by Inventor Youngcheol Sa

Youngcheol Sa 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).

  • Air conditioner
    Patent number: 9140474
    Abstract: An air conditioner includes an outdoor heat exchanger that is divided into a plurality of unit paths. at least two of the plurality of unit paths are connected in series or parallel to one another according to cooling/heating operation, so that it is possible to vary the number or length of paths through which a refrigerant passes. Since the number or length of paths is properly selected and used, it is possible to enhance efficiency.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 22, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jiyoung Jang, Baikyoung Chung, Youngcheol Sa