Patents by Inventor Songtao Shi

Songtao Shi 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).

  • Postnatal Stem Cells and Uses Thereof
    Publication number: 20070274958
    Abstract: The invention generally relates to postnatal dental stem cells and methods for their use. More specifically, the invention relates in one aspect to postnatal dental pulp stem cells, use of the cells to generate dentin, and differentiation of the cells. In another aspect, the invention relates to human postnatal deciduous dental pulp multipotent stem cells, use of the cells to generate dentin, and differentiation of the cells.
    Type: Application
    Filed: April 19, 2003
    Publication date: November 29, 2007
    Inventors: Songtao Shi, Pamela Robey, Stan Gronthos, Masako Miura
  • Perivascular mesenchymal precursor cells
    Publication number: 20070065938
    Abstract: Mesenchymal precursors cells have been isolated from perivascular niches from a range of tissues utilizing a perivascular marker. A new mesenchymal precursor cell phenotype is described characterized by the presence of the perivascular marker 3G5, and preferably also alpha smooth muscle actin together with early developmental markers such as MUC 18, VCAM-1 and STRO-1bri. The perivascular mesenchymal precursor cell is multipotential and is shown to form, vascular tissue, as well as bone marrow dentin and pulp. A method of enriching using cell sorting based on these markers is also described.
    Type: Application
    Filed: March 29, 2004
    Publication date: March 22, 2007
    Inventors: Stan Gronthos, Andrew Zannettino, Songtao Shi
  • Multipotent postnatal stem cells from human periodontal ligament and uses thereof
    Publication number: 20070009492
    Abstract: The invention generally relates to postnatal periodontal ligament stem cells and methods for their use. More specifically, the invention relates in one aspect to postnatal periodontal ligament multipotent stem cells, use of the cells to generate periodontium, differentiation of the cells and methods of tissue cryopreservation.
    Type: Application
    Filed: May 12, 2006
    Publication date: January 11, 2007
    Inventors: Songtao Shi, Byoung-Moo Seo, Masako Miura
  • Adult human dental pulp stem cells in vitro and in vivo
    Patent number: 7052907
    Abstract: The present invention provides a culture of isolated adult human dental pulp stem cells that can differentiate into dentin/pulp tissue that can be used to produce a tooth in a human being. The present invention further provides a method of regenerating human dentin/pulp tissue.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: May 30, 2006
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Songtao Shi, Stan Gronthos, Pamela Gehron Robey
  • Adult human dental pulp stem cells in vitro and in vivo
    Publication number: 20040058442
    Abstract: The present invention provides a culture of isolated adult human dental pulp stem cells that can differentiate into dentin/pulp tissue that can be used to produce a tooth in a human being. The present invention further provides a method of regenerating human dentin/pulp tissue.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 25, 2004
    Inventors: Songtao Shi, Stan Gronthos, Pamela Gehron Robey