Patents by Inventor Qingling Feng

Qingling Feng 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).

  • Nano-calcium phosphates/collagen based bone substitute materials
    Patent number: 6887488
    Abstract: The present invention relates to a nano-calcium phosphates/collagen composite that mimics the natural bone, both in composition and microstructure, as well as porous bone substitute and tissue engineering scaffolds made by a complex of said composite and poly(lactic acid)(PLA) or poly(lactic acid-co-glycolic acid)(PLGA). The invention also relates to the use of said scaffold in treating bone defect and bone fracture.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: May 3, 2005
    Assignee: Tsinghua University
    Inventors: Fuzhai Cui, Shuming Zhang, Wei Zhang, Qiang Cai, Qingling Feng
  • Nano-calcium phosphates/collagen based bone substitute materials
    Publication number: 20020018797
    Abstract: The present invention relates to a nano-calcium phosphates/collagen composite that mimics the natural bone, both in composition and microstructure, as well as porous bone substitute and tissue engineering scaffolds made by a complex of said composite and poly(lactic acid)(PLA) or poly(lactic acid-co-glycolic acid)(PLGA). The invention also relates to the use of said scaffold in treating bone defect and bone fracture.
    Type: Application
    Filed: May 2, 2001
    Publication date: February 14, 2002
    Inventors: Fuzhai Cui, Shuming Zhang, Wei Zhang, Qiang Cai, Qingling Feng