Patents by Inventor Chi Myong Kwon

Chi Myong Kwon 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).

  • Patent number: 9920667
    Abstract: The present invention relates to a water drain system of an oil reserve tank, which comprises: an oil reserve tank; an oil and water separator for separating the drained water coming from the oil reserve tank; a drain pipe extended from the oil reserve tank to the oil and water separator, the drain pipe having a vertical part to form a step; and a water detection sensor installed in the vertical part.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: March 20, 2018
    Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.
    Inventors: Chi Myong Kwon, Jang Heon Lee, Hee Duck Park, Hye Min Choi, Yoo Keun Kim, Ki Young Bae, Cheol Hong
  • Publication number: 20150152759
    Abstract: The present invention relates to a water drain system of an oil reserve tank, which comprises: an oil reserve tank; an oil and water separator for separating the drained water coming from the oil reserve tank; a drain pipe extended from the oil reserve tank to the oil and water separator, the drain pipe having a vertical part to form a step; and a water detection sensor installed in the vertical part.
    Type: Application
    Filed: June 19, 2013
    Publication date: June 4, 2015
    Applicant: SK Innovation Co., Ltd.
    Inventors: Chi Myong Kwon, Jang Heon Lee, Hee Duck Park, Hye Min Choi, Yoo Keun Kim, Ki Young Bae, Cheol Hong