Patents by Inventor Dong Won Sung

Dong Won Sung 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).

  • Publication number: 20090240374
    Abstract: A method of controlling an air conditioner is provided. The method may include determining whether the air conditioner is operating in an abnormal state, and, when the air conditioner is operating in the abnormal state, operating a compressor in a safe mode having a different frequency pattern than when it is operated in a normal mode of the compressor. This allows the air conditioner to provide continuous heating/cooling, even when operating in an abnormal state.
    Type: Application
    Filed: February 25, 2009
    Publication date: September 24, 2009
    Inventors: Seung Youp Hyun, Deok Huh, Gil Bong Lee, Dong Won Sung