Patents by Inventor Kwon-Shun Cheng

Kwon-Shun Cheng 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 fiber membrane contact apparatus and process
    Publication number: 20050230856
    Abstract: The present invention provides a perfluorinated thermoplastic hollow fiber (14) membrane gas-liquid shell side contactor (10) and a process for manufacturing the contactor (10) is described. The present invention also provides a device including a gas-liquid contactor (10) for producing ozonated water.
    Type: Application
    Filed: March 6, 2003
    Publication date: October 20, 2005
    Inventors: Bipin Parekh, Rajnikant Patel, Kwon-Shun Cheng