Patents by Inventor Ye Wee SIEW

Ye Wee SIEW 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).

  • Anti-fouling and semi-permeable membrane
    Patent number: 12311321
    Abstract: The present invention relates to an anti-fouling, semi-permeable membrane comprising a porous support layer, a thin film composite (TFC) layer formed on a surface of the support layer, and a cross-linked polyvinyl alcohol (PVA) layer formed on top of the TFC layer, wherein the cross-linked PVA layer is the reaction product of PVA and a cross-linking agent, said cross-linking agent being a polybasic acid comprising three or more acid groups or precursors thereof. The obtained membrane shows a high water flux and a low roughness suitable for an effective membrane notable for feed solution having a tendency of fouling the membrane.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: May 27, 2025
    Assignees: Aquaporin A/S, Aquaporin Asia Pte Ltd
    Inventors: Nur Amalyna Binte Azman, Yang Zhao, Ye Wee Siew, Dongyu Liu, Brett Holmberg, Guofei Sun, Weng Hong Ho, Xuan Tung Nguyen
  • ANTI-FOULING AND SEMI-PERMEABLE MEMBRANE
    Publication number: 20230064768
    Abstract: The present invention relates to an anti-fouling, semi-permeable membrane comprising a porous support layer, a thin film composite (TFC) layer formed on a surface of the support layer, and a cross-linked polyvinyl alcohol (PVA) layer formed on top of the TFC layer, wherein the cross-linked PVA layer is the reaction product of PVA and a cross-linking agent, said cross-linking agent being a polybasic acid comprising three or more acid groups or precursors thereof. The obtained membrane shows a high water flux and a low roughness suitable for an effective membrane notable for feed solution having a tendency of fouling the membrane.
    Type: Application
    Filed: December 14, 2020
    Publication date: March 2, 2023
    Applicants: Aquaporin A/S, Aquaporin Asia Pte Ltd
    Inventors: Nur Amalyna Binte AZMAN, Yang ZHAO, Ye Wee SIEW, Dongyu LIU, Brett HOLMBERG, Guofei SUN, Ho Weng HONG, Xuan Tung NGUYEN