Patents by Inventor Kwork-Shun Cheng

Kwork-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).

  • OLEOPHOBIC FLUOROPOLYMERS AND FIBROUS MATERIALS PREPARED THEREFROM
    Publication number: 20230025277
    Abstract: The disclosure provides a process for preparing an oleophobic fluoropolymer emulsion. The resulting fluoropolymer emulsion has excellent hydrophobic and oleophobic modification ability (as coatings) on polyester fibers such as polyester (PET), polypropylene (PP) and woven and nonwoven fabrics. Accordingly, the woven and nonwoven materials so coated are useful in venting filter applications.
    Type: Application
    Filed: June 22, 2022
    Publication date: January 26, 2023
    Inventors: Mei Feng He, Dongzhu Wu, Yun Jia Xia, Kwork-Shun Cheng