Patents by Inventor Feifei Xiao

Feifei Xiao 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).

  • Heavy metal- and odour-free nanoparticulate compositions
    Patent number: 11970563
    Abstract: The present invention relates to a nanoparticulate composition comprising nanoparticles formed from an amphipathic block copolymer comprising a hydrophilic block and a hydrophobic block, where the nanoparticles are provided in the form of micelles, cylindrical worm structures or vesicles and the size of the nanoparticles is from 25 to 500 nm, wherein: the composition is substantially free of heavy metals and compounds comprising sulfur. Also disclosed herein is a method of forming said nanoparticulate composition by polymerization induced self-assembly (PISA) via non-transition-metal catalysed controlled radical polymerization (NTMC-CRP).
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 30, 2024
    Assignees: Nanyang Technological University, Agency for Science, Technology and Research
    Inventors: Atsushi Goto, Jit Sarkar, Longqiang Xiao, Feifei Li, Alexander M. Van Herk, Alexander William Jackson
  • Electric vacuum cleaner
    Patent number: D660527
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: May 22, 2012
    Assignee: Makita Corporation
    Inventors: Tomonori Kawase, Zhiqiang Lv, Feifei Xiao
  • Electric vacuum cleaner
    Patent number: D660528
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: May 22, 2012
    Assignee: Makita Corporation
    Inventors: Shinsuke Okuda, Fuzhi Zhang, Feifei Xiao