Patents by Inventor Xiangguo Dai

Xiangguo Dai 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: 6727288
    Abstract: The present invention relates to a method for treating or preventing bone fracture, which comprises administering an effective amount of calcium L-threonate to a subject in need of such prevention or treatment. It had been found from experiments that calcium L-threonate could not only promote proliferation, differentiation and mineralization of osteoblasts, but also could promote the expression of collagen I mRNA of osteoblasts cultured in vitro. Accordingly it facilitated bone fracture healing and increased bone density and mechanical performance, so as to prevent or treat bone fracture.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: April 27, 2004
    Assignee: Juneng Industry Co., Ltd.
    Inventors: Kai Yu, Zhiwen Wang, Xiangguo Dai
  • Patent number: 6713513
    Abstract: The present invention relates to a method for preventing or treating of cartilage related diseases, such as osteoarthritis, rheumatoid arthritis, articular cartilage damage, multiple chondritis, osteochondrosis, etc., which comprises administering an effective amount of calcium L-threonate to a subject in need of such prevention or treatment. It had been demonstrated by experiments that calcium L-threonate could improve significantly the positive expression percentage of collagen I mRNA in the chondrocyte and osteoblast, improved significantly the positive expression percentage of articular cartilage and epiphyseal cartilage, facilitated the growth of chondrocyte, increased the quantity of bone collagen, and promoted the formation of bone and cartilage matrix and the synthesis of proteoglycan. It could also promote the formation of bone nourishing blood vessels and improve the microcirculation of bone.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: March 30, 2004
    Assignee: Juneng Industry Co., Ltd.
    Inventors: Kai Yu, Zhiwen Wang, Xiangguo Dai
  • Publication number: 20030050342
    Abstract: The present invention relates to a method for preventing or treating of cartilage related diseases, such as osteoarthritis, rheumatoid arthritis, articular cartilage damage, multiple chondritis, osteochondrosis, etc., which comprises administering an effective amount of calcium L-threonate to a subject in need of such prevention or treatment. It had been demonstrated by experiments that calcium L-threonate could improve significantly the positive expression percentage of collagen I mRNA in the chondrocyte and osteoblast, improved significantly the positive expression percentage of articular cartilage and epiphyseal cartilage, facilitated the growth of chondrocyte, increased the quantity of bone collagen, and promoted the formation of bone and cartilage matrix and the synthesis of proteoglycan. It could also promote the formation of bone nourishing blood vessels and improve the microcirculation of bone.
    Type: Application
    Filed: December 31, 2001
    Publication date: March 13, 2003
    Inventors: Kai Yu, Zhiwen Wang, Xiangguo Dai
  • Publication number: 20020169210
    Abstract: The present invention relates to a method for treating or preventing bone fracture, which comprises administering an effective amount of calcium L-threonate to a subject in need of such prevention or treatment. It had been found from experiments that calcium L-threonate could not only promote proliferation, differentiation and mineralization of osteoblasts, but also could promote the expression of collagen I mRNA of osteoblasts cultured in vitro. Accordingly it facilitated bone fracture healing and increased bone density and mechanical performance, so as to prevent or treat bone fracture.
    Type: Application
    Filed: December 31, 2001
    Publication date: November 14, 2002
    Inventors: Kai Yu, Zhiwen Wang, Xiangguo Dai