Patents by Inventor David Ji Chun Kim

David Ji Chun Kim 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).

  • Multiple rinse injections to reduce sound in vacuum toilets
    Patent number: 10683652
    Abstract: Embodiments of the present disclosure relate generally to systems and methods for reducing sound in vacuum toilets. In one example, multiple rinse injections are used at appropriately timed intervals in order to reduce the vacuum flush sound levels.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 16, 2020
    Assignee: MAG Aerospace Industries, LLC
    Inventors: David Beach, Kent Gee, John Yu, Scott Sommerfeldt, Garen Murray, Razmik Boodaghians, David Ji Chun Kim