Patents by Inventor Mark K. Keung

Mark K. Keung 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: 5610064
    Abstract: Bacteria capable of reducing the concentration of sulphur black dye in a substrate when contacted with the substrate are provided. The subject bacteria may be either aerobic or anaerobic and reduce the concentration of sulphur black dye in the substrate through either bioadsorption or biodegradation of sulphur black dye.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: March 11, 1997
    Inventor: Mark K. Keung