Patents by Inventor Jong Ok Han

Jong Ok Han 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).

  • Microbial media and waste water treatment method using same
    Patent number: 5399266
    Abstract: A microbial media comprising numerous U type loops having at least two types of fibers woven on a central stay, at least one of these fibers being polyvinylidene chloride, acryl, nylon, polypropylene, polyethylene or carbon; and a waste water treatment method using same.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: March 21, 1995
    Assignee: Resource Biology Research Institute Co., Ltd.
    Inventors: Moriju Hasegawa, Jong Ok Han