Patents by Inventor Woo-Seung Choi

Woo-Seung Choi 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).

  • Hollow-fibre membrane module
    Patent number: 9248409
    Abstract: Provided is a hollow-fiber membrane module comprising a submodule inside which raw water is circulated and water treatment is carried out, and a piping unit which is connected to the submodule and through which the raw water and air and treated water flow, such that flow rates can be increased and energy consumption can be minimized through the circulation of a fluid.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: February 2, 2016
    Assignee: Woongjin Coway, Co. Ltd.
    Inventors: Soo-Hong Noh, Oh-Sung Kwon, Young-Keun Choi, Chan-Sik Kim, Seung-Il Lee, Woo-Seung Choi
  • Hollow-Fibre Membrane Module
    Publication number: 20120292248
    Abstract: Provided is a hollow-fibre membrane module comprising a submodule inside which raw water is circulated and water treatment is carried out, and a piping unit which is connected to the submodule and through which the raw water and air and treated water flow, such that flow rates can be increased and energy consumption can be minimised through the circulation of a fluid, and the advantages of internal-pressure type and external-pressure type systems can be incorporated in a composite fashion.
    Type: Application
    Filed: January 27, 2011
    Publication date: November 22, 2012
    Applicant: Woongjin Coway, Co. Ltd.
    Inventors: Soo-Hong Noh, Oh-Sung Kwon, Young-Keun Choi, Chan-Sik Kim, Seung-Il Lee, Woo-Seung Choi