Patents by Inventor John Knapik

John Knapik 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).

  • Halo crown
    Patent number: 6468238
    Abstract: A halo crown has depending posterior legs adjustable in multiple dimensions for conveniently adjusting the halo crown to a patient's skull. Each leg slides along a single axis yet provides adjustments in three dimensions due to a portion thereof extending downwardly, inwardly and rearwardly and the orientation of the axis.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: October 22, 2002
    Assignee: Depuy Acromed, Inc.
    Inventors: J. Riley Hawkins, John Knapik, Eric Smith