Patents by Inventor Wenwei LIANG

Wenwei LIANG 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).

  • Publication number: 20230181476
    Abstract: Disclosed is an oral sustained-release composition for an insoluble drug, which is especially suitable for a low-dose insoluble drug, the oral sustained-release composition comprises a sustained-release granule part and a gel skeleton part, the sustained-release granule part comprises the insoluble drug, an enteric material, and a strong liquid sorbent, and the gel skeleton part comprises a hydrophilic gel skeleton material; and the sustained-release granules are obtained by preparing the insoluble drug and the enteric material into a suspension and then spraying the suspension onto the strong liquid sorbent, the sustained-release granules are wrapped by the gel skeleton to form a multiple sustained-release system technology, which prolongs a release time, and has a simple preparation process, high efficiency, uniform drug mixing, and less content loss.
    Type: Application
    Filed: May 25, 2021
    Publication date: June 15, 2023
    Inventors: Feng LIU, Xiaofeng TAN, Wenwei LIANG, Weijie ZHOU, Junlong HUANG