Patents by Inventor Darren Delai Sun

Darren Delai Sun 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).

  • Method of preparing a nanocomposite membrane and nanocomposite membranes prepared thereof
    Patent number: 10537857
    Abstract: The present invention relates to a method of preparing a nanocomposite membrane, comprising: (a) providing a nanocomposite solution comprising a polymer solution and nanomaterials; (b) subjecting the nanocomposite solution to a cold water bath to produce the nanocomposite membrane in a gel-like form; and (c) subjecting the gel nanocomposite membrane to a heat treatment to solidify the nanocomposite membrane, wherein the nanomaterials are dispersed within the polymer matrix of the nanocomposite membrane.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: January 21, 2020
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Darren Delai Sun, Zhaoyang Liu
  • MICROSPHERIC TIO2 PHOTOCATALYST
    Publication number: 20140228203
    Abstract: The present invention refers to titanium oxide microspheres having photocatalytic properties which can, for example, be used in a method for cleaning wastewater which uses a submerged membrane reactor.
    Type: Application
    Filed: April 21, 2014
    Publication date: August 14, 2014
    Applicants: Nanyang Technological University, The Board of Trustees of The Leland Stanford Junior University
    Inventors: Darren Delai SUN, Pei Fung LEE, James O. LECKIE
  • METHOD OF PREPARING A NANOCOMPOSITE MEMBRANE AND NANOCOMPOSITE MEMBRANES PREPARED THEREOF
    Publication number: 20130098833
    Abstract: The present invention relates to a method of preparing a nanocomposite membrane, comprising: (a) providing a nanocomposite solution comprising a polymer solution and nanomaterials; (b) subjecting the nanocomposite solution to a cold water bath to produce the nanocomposite membrane in a gel-like form; and (c) subjecting the gel nanocomposite membrane to a heat treatment to solidify the nanocomposite membrane, wherein the nanomaterials are dispersed within the polymer matrix of the nanocomposite membrane.
    Type: Application
    Filed: April 25, 2011
    Publication date: April 25, 2013
    Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Darren Delai Sun, Zhaoyang Liu
  • Membrane made of a nanostructured material
    Patent number: 8414806
    Abstract: The present invention refers to a method of fabricating a membrane made of a nanostructured material and its use.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: April 9, 2013
    Assignees: Nanyang Technological University, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Darren Delai Sun, Xiwang Zhang, Jianghong Alan Du, James O Leckie
  • 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
  • MEMBRANE MADE OF A NANOSTRUCTURED MATERIAL
    Publication number: 20100233812
    Abstract: The present invention refers to a method of fabricating a membrane made of a nanostructured material and its use.
    Type: Application
    Filed: March 28, 2008
    Publication date: September 16, 2010
    Inventors: Darren Delai Sun, Xiwang Zhang, Jianghong Alan Du, 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
  • MICROSPHERIC TIO2 PHOTOCATALYST
    Publication number: 20100133182
    Abstract: The present invention refers to titanium oxide microspheres having photocatalytic properties which can, for example, be used in a method for cleaning wastewater which uses a submerged membrane reactor.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 3, 2010
    Applicants: NANYANG TECHNOLOGICAL UNIVERSITY, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Darren Delai Sun, Pei Fung Lee, James O. Leckie