Patents by Inventor William F. Warrender, Jr.

William F. Warrender, Jr. 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).

  • Patent number: 5849015
    Abstract: An orthopaedic stem inserter grips and inserts a prosthetic implant having a stem into a prepared opening in a bone. A handle includes a housing, a rotating knob connected to a first end of the housing, and an elongate element connected to the knob and extending through the housing to a second end of the housing. A body includes a pair of jaws, with each jaw being configured to grip the implant. One of the jaws is movable in directions toward and away from the other jaw. A geared rack is connected with the movable jaw. A first gear is connected with the rack, and a second gear is connected with the elongate element and selectively enmeshes with the first gear. A quick release lever is pivotally attached to the handle and has an engaging portion which engages the second gear. The quick release lever moves the second gear toward and away from the first gear upon pivotal movement relative to the handle and thereby respectively enmeshes and demeshes the first and second gears.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: December 15, 1998
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bill H. Haywood, Billie W. McBroom, William C. Smith, Scott J. Steffensmeier, William F. Warrender, Jr., David J. Krueger