Patents by Inventor Chang Feng Liu

Chang Feng 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).

  • Lipid delivery system and virus-like structure (VLS) vaccine constructed therefrom
    Patent number: 11911460
    Abstract: A lipid delivery system, a virus-like structure (VLS) vaccine constructed therefrom, and a lipid particle capable of encapsulating an mRNA molecule encoding a SARS-CoV-2-specific antigen are provided. After the lipid particle encapsulates an mRNA molecule encoding a SARS-CoV-2 antigen, a SARS-CoV-2 S1 antigen protein can be embedded on a surface of an envelope structure of the lipid under specific buffer conditions to produce a VLS vaccine with an antigen-encoding mRNA molecule encapsulated inside and an outer membrane presenting a required viral antigen protein. The vaccine has a superior specific antibody-inducing ability to a SARS-CoV-2 mRNA vaccine and a polypeptide vaccine, can maintain a long-lasting high antibody level, and can also exhibit excellent immune binding abilities for the emerging different variants.
    Type: Grant
    Filed: August 1, 2023
    Date of Patent: February 27, 2024
    Assignees: Weirui Biotechnology (Kunming) Co., LTD., Shandong Weigao Litong Biological Products Co., Ltd.
    Inventors: Qihan Li, Kaili Ma, Yanmei Li, Jingjing Zhang, Lichun Wang, Changyong Mu, Xiaowu Peng, Yanrui Su, Chang'e Liu, Liping He, Lin Feng, Dongxiu Gao, An Wang, Hongbing Li, Gang Xu, Fuyun He, Lichun Zheng, Hongkun Yi
  • Thin-wall housing
    Patent number: 6043310
    Abstract: A fire-resistant polycarbonate resin composition containing A) 5-50 parts by weight of liquid crystal polymer, B) 90-40 parts by weight of polycarbonate resin, C) 2-20 parts by weight of flame retardant, and 0.1-1.0 parts by weight of polytetrafluoroethylene.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: March 28, 2000
    Assignee: General Electric Company
    Inventors: Chang Feng Liu, Hideyuki Itoi