Patents by Inventor Ging Hauw Khoe

Ging Hauw Khoe 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).

  • Photo-assisted oxidation of inorganic species in aqueous solutions
    Patent number: 6884391
    Abstract: A method for oxidizing an inorganic species in an aqueous solution comprises the steps of: (i) supplying an oxidizable source of sulphur, and oxygen to the solution; and (ii) irradiating the solution with UV light such that both the inorganic and sulphur species are oxidized.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: April 26, 2005
    Assignee: CRC For Waste Management & Pollution Control Limited
    Inventors: Ging Hauw Khoe, Myint Zaw, Patricia Salini Prasad, Maree Therese Emett
  • Iron-catalysed oxidation of manganese and other inorganic species in aqueous solutions
    Patent number: 6558556
    Abstract: A method of oxidizing an inorganic species in an aqueous solution of pH 5 or greater, comprises the steps of (i) supplying an oxidizable form of a sulfur compound, and oxygen to the solution; and (ii) adding a source of iron to the solution and allowing oxidation to take place. The method finds particular application in the treatment of manganese and other species in potable water, industrial waste waters and process liquors.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: May 6, 2003
    Assignees: Australian Nuclear Science and Technology Organisation, CRC for Waste Management & Pollution Control, Ltd.
    Inventors: Ging Hauw Khoe, Myint Zaw
  • Photoassisted oxidation of species in solution
    Patent number: 5688378
    Abstract: The invention relates to methods and processes for the photoassisted oxidation of dissolved species such as arsenic, iron, phosphorous and sulphur. Each aspect of the invention involves supplying to a solution including the species to be oxidized, an oxidant and a photoabsorber, and then irradiating the resultant solution with UV/electromagnetic radiation. The resulting oxidised species can then be subsequently treated, used and/or removed (e.g. through precipation/co-precipitation).
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: November 18, 1997
    Assignee: CRC for Waste Management & Pollution Control
    Inventors: Ging Hauw Khoe, Maree Therese Emett, Robert G. Robins