Patents by Inventor John Dowdle

John Dowdle 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).

  • Graduated bone graft harvester
    Patent number: 6139509
    Abstract: A disposable, bone graft harvester having a clear, graduated plastic tube tipped with a bone cutting head at one end and a handle or other torque supplying connection at the other end.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: October 31, 2000
    Inventors: Hansen Yuan, Peter Stutz, John Dowdle, Serafin Samson
  • Graduated bone graft harvester
    Patent number: 5833628
    Abstract: A disposable, bone graft harvester having a clear, graduated plastic tube tipped with a bone cutting head at one end and a handle or other torque supplying connection at the other end.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: November 10, 1998
    Inventors: Hansen Yuan, Peter Stutz, John Dowdle, Serafin Samson