Patents by Inventor Robin D. Listrom

Robin D. Listrom 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).

  • Fixture for attaching prosthesis to bone
    Patent number: 4713003
    Abstract: A device is disclosed for use in connecting a prosthesis to bone such as connecting an artificial tooth or dental bridge to the jaws which comprises an implant portion or screw for connection to the bone, the screw having a head and a downwardly tapered shaft, an abutment portion for connection to the prothesis, and connecting means for connecting the implant and the abutment. Preferably, the components of the invention are machined from titanium alloy.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: December 15, 1987
    Assignee: University of Toronto Innovations Foundation
    Inventors: John M. Symington, Robin D. Listrom