Patents by Inventor Qixin Zheng

Qixin Zheng 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).

  • Patent number: 7754683
    Abstract: A bone morphogenetic protein-2 active peptide is characterized in that the structure is S[PO4]KIPKASSVPTELSAISTLYLDDD (SEQ ID NO: 1) or CCCCDDDS[PO4]KIPKASSVPTELSAISTLYL (SEQ ID NO: 2) or C16H31O—NH—CCCCGGGS[PO4]KIPKASSVPTELSAISTLYL (SEQ ID NO: 3). It overcomes the disadvantages of existing BMP-2, such as short half life, difficulty of sustained effect, complexity of equipments and preparation techniques, long production cycle, low yield, expensive price, and is accordingly difficult for large-scale production. In addition, the bone morphogenetic protein-2 active peptide exhibits the advantages, such as complete exposure of active sites, good ectopic osteogenesis ability, easy large-scale synthesis, lower cost, better stability and long duration. Meanwhile, the present invention also relates to the manufacturing method and application of such bone morphogenetic protein-2 active peptide.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: July 13, 2010
    Inventors: Xiaodong Guo, Qixin Zheng, Quan Yuan, Deyu Duan, Jianxiang Liu, Zhixia Duan
  • Publication number: 20090082272
    Abstract: A bone morphogenetic protein-2 active peptide is characterized in that the structure is S[PO4]KIPKASSVPTELSAISTLYLDDD or CCCCDDDS[PO4]KIPKASSVPTELSAISTLYL or C16H31O—NH—CCCCGGGS[PO4]-KIPKASSVPTELSAISTLYL. It overcomes the disadvantages of existing BMP-2, such as short half life, difficulty of sustained effect, complexity of equipments and preparation techniques, long production cycle, low yield, expensive price, and is accordingly difficult for large-scale production. In addition, the bone morphogenetic protein-2 active peptide exhibits the advantages, such as complete exposure of active sites, good ectopic osteogenesis ability, easy large-scale synthesis, lower cost, better stability and long duration.
    Type: Application
    Filed: April 9, 2008
    Publication date: March 26, 2009
    Inventors: Xiaodong GUO, Qixin ZHENG, Quan YUAN, Deyu DUAN, Jianxiang LIU, Zhixia DUAN