Patents by Inventor Rongyi Cai

Rongyi Cai 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).

  • Radiostereometric calibration cage
    Patent number: 7873147
    Abstract: A calibration cage for use in Roentgen Stereophotogrammetric Analysis (RSA), comprising a biplanar configuration of two compartments, each with a fiducial plate at the bottom and a control plate at the top and parallel thereto, the fiducial and control plates of one compartment being oriented at approximately 90° to fiducial and control plates of the other compartment such that a region of interest is positioned on one side of the fiducial and control plates of both compartments.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: January 18, 2011
    Assignee: The University of Western Ontario
    Inventors: Xunhua Yuan, Rongyi Cai, David Holdsworth, Cecil Rorabeck, Robert Bourne, Petar Seslija
  • RADIOSTEREOMETRIC CALIBRATION CAGE
    Publication number: 20090116621
    Abstract: A calibration cage for use in Roentgen Stereophotogrammetric Analysis (RSA), comprising a biplanar configuration of two compartments, each with a fiducial plate at the bottom and a control plate at the top and parallel thereto, the fiducial and control plates of one compartment being oriented at approximately 90° to fiducial and control plates of the other compartment such that a region of interest is positioned on one side of the fiducial and control plates of both compartments.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 7, 2009
    Applicant: THE UNIVERSITY OF WESTERN ONTARIO
    Inventors: Xunhua Yuan, Rongyi Cai, David Holdsworth, Cecil Rorabeck, Robert Bourne, Petar Seslija
  • Insole
    Patent number: D572888
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: July 15, 2008
    Inventor: Rongyi Cai
  • Insole
    Patent number: D595943
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: July 14, 2009
    Inventor: Rongyi Cai