Patents by Inventor Chung Hui Lee LIU

Chung Hui Lee LIU 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).

  • Microcell delivery systems including charged or magnetic particles for regulating rate of administration of actives
    Patent number: 10646454
    Abstract: An active molecule delivery system whereby active molecules can be released on demand and/or a variety of different active molecules can be delivered from the same system and/or different concentrations of active molecules can be delivered from the same system. The active delivery system includes a plurality of microcells, wherein the microcells are filled with a medium including an active ingredient and charged or magnetic particles. The microcells include an opening, and the opening is spanned by a porous diffusion layer. Because the porous diffusion layer can be blocked with the charged or magnetic particles, the rate at which the active ingredient is dispensed can be controlled with an electric or magnetic field, respectively.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 12, 2020
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Lei Liu, Lin Shao, Chung Hui Lee Liu, Hui Du, Ming Wang
  • MICROCELL DELIVERY SYSTEMS INCLUDING CHARGED OR MAGNETIC PARTICLES FOR REGULATING RATE OF ADMINISTRATION OF ACTIVES
    Publication number: 20180271799
    Abstract: An active molecule delivery system whereby active molecules can be released on demand and/or a variety of different active molecules can be delivered from the same system and/or different concentrations of active molecules can be delivered from the same system. The active delivery system includes a plurality of microcells, wherein the microcells are filled with a medium including an active ingredient and charged or magnetic particles. The microcells include an opening, and the opening is spanned by a porous diffusion layer. Because the porous diffusion layer can be blocked with the charged or magnetic particles, the rate at which the active ingredient is dispensed can be controlled with an electric or magnetic field, respectively.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 27, 2018
    Inventors: Lei LIU, Lin SHAO, Chung Hui Lee LIU, Hui DU, Ming WANG