Patents by Inventor Choon Teck Hay

Choon Teck Hay 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).

  • Water reclamation without biosludge reproduction
    Patent number: 8273247
    Abstract: An apparatus for cleaning of wastewater comprising a submerged membrane biological reactor system (MBR) and a submerged membrane module (MBD) wherein the MBR is in fluid communication with the MBD for feeding excess sludge from the MBR to the MBD and wherein the MBR comprises an outlet which releases permeate passed through the membrane of the MBR and the MBD is in fluid communication with the MBR for feeding permeate passed through the membrane of the MBD back into the MBR and comprises an outlet for releasing gas.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: September 25, 2012
    Assignees: Nanyang Technological University, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Darren Delai Sun, Choon Teck Hay, Swee Loong Khor, James O. Leckie
  • WATER RECLAMATION WITHOUT BIOSLUDGE PRODUCTION
    Publication number: 20100140167
    Abstract: An apparatus for cleaning of wastewater comprising a submerged membrane biological reactor system (MBR) and a submerged membrane module (MBD) wherein the MBR is in fluid communication with the MBD for feeding excess sludge from the MBR to the MBD and wherein the MBR comprises an outlet which releases permeate passed through the membrane of the MBR and the MBD is in fluid communication with the MBR for feeding permeate passed throug the membrane of the MBD back into the MBR and comprises an outlet for releasing gas.
    Type: Application
    Filed: November 28, 2007
    Publication date: June 10, 2010
    Applicants: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Darren Delai Sun, Choon Teck Hay, Swee Loong Khor, James O. Leckie