Patents by Inventor Chunfeng Wan

Chunfeng Wan 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).

  • Thin film composite hollow fibre membrane
    Patent number: 11465100
    Abstract: There is provided a thin film composite (TFC) hollow fibre membrane comprising a porous hollow fibre support layer formed of a polymer and a selective layer, formed of a cross-linked polyamide, on an inner circumferential surface of the hollow fibre support layer, wherein the TFC hollow fibre membrane has a power density of 25-50 W/m2 at a pressure of 30 bar. There is also provided a method of forming the TFC hollow fibre membrane.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: October 11, 2022
    Assignee: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Chunfeng Wan, Tianshi Yang, Wenxiao Gai, Tai-Shung Neal Chung
  • Thin film composite hollow fiber membranes for osmotic power generation
    Patent number: 10987846
    Abstract: Disclosed is a thin film composite hollow fiber that includes an outer support layer having a thickness of 10 to 1000 ?m and a polyamide thin film layer having a thickness of 1 to 10000 nm; and has a transmembrane pressure resistance rate of higher than 15 bar and a pure water permeability rate of higher than 0.8 Lm?2h?1bar?1. Also disclosed are methods of preparing the above-described support and composite hollow fiber.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 27, 2021
    Assignee: National University of Singapore
    Inventors: Sui Zhang, Panu Sukitpaneenit, Tai-Shung Chung, Chunfeng Wan
  • THIN FILM COMPOSITE HOLLOW FIBRE MEMBRANE
    Publication number: 20200298185
    Abstract: There is provided a thin film composite (TFC) hollow fibre membrane comprising a porous hollow fibre support layer formed of a polymer and a selective layer, formed of a cross-linked polyamide, on an inner circumferential surface of the hollow fibre support layer, wherein the TFC hollow fibre membrane has a power density of 25-50 W/m2 at a pressure of 30 bar. There is also provided a method of forming the TFC hollow fibre membrane.
    Type: Application
    Filed: November 30, 2018
    Publication date: September 24, 2020
    Inventors: Chunfeng WAN, Tiansh YANG, Wenxia GAI, Tai-Shung Neal CHUNG
  • THIN FILM COMPOSITE HOLLOW FIBER MEMBRANES FOR OSMOTIC POWER GENERATION
    Publication number: 20190202103
    Abstract: Disclosed is a thin film composite hollow fiber that includes an outer support layer having a thickness of 10 to 1000 ?m and a polyamide thin film layer having a thickness of 1 to 10000 nm; and has a transmembrane pressure resistance rate of higher than 15 bar and a pure water permeability rate of higher than 0.8 Lm?2h?1bar?1. Also disclosed are methods of preparing the above-described support and composite hollow fiber.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Sui Zhang, Panu Sukitpaneenit, Tai-Shung Chung, Chunfeng Wan
  • THIN FILM COMPOSITE HOLLOW FIBER MEMBRANES FOR OSMOTIC POWER GENERATION
    Publication number: 20160121533
    Abstract: Disclosed is a thin film composite hollow fiber that includes an outer support layer having a thickness of 10 to 10000 ?m and a polyamide thin film layer having a thickness of 1 to 10000 nm; and has a transmembrane pressure resistance rate of higher than 15 bar and a pure water permeability rate of higher than 0.8 Lm?2 h?1 bar?1. Also disclosed are methods of preparing the above-described support and composite hollow fiber.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 5, 2016
    Inventors: Sui Zhang, Panu Sukitpaneenit, Tai-Shung Chung, Chunfeng Wan