Patents by Inventor William G. Di Maio

William G. Di Maio 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).

  • Anatomically neutral joint
    Patent number: 5824095
    Abstract: A joint prosthesis is disclosed with stems affixed to the flexing main body at a natural, angle; with positive flexion and extension stops; and with stress-relieving radii at intersections between the stems and the main body.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: October 20, 1998
    Assignees: E. I. du Pont de Nemours and Company, De Puy DuPont Orthopedics
    Inventors: William G. Di Maio, Jr., Michele Staud Marcolongo, Arnold-Peter C. Weiss
  • Vortexing liquid container
    Patent number: 5009942
    Abstract: A nutatable plastic vessel, having a protuberant tip at its bottom end, has its side wall connected by a plastic hinge to a housing.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: April 23, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joshua Benin, William G. Di Maio, Carl F. Morin, James A. Lawler
  • Automatic vortex mixer
    Patent number: 4848917
    Abstract: A vortexing mixer drive has a rotatable coupling rod where an end face defines an offcenter countersink with a bore at the center of the countersink. The rod is axially displaced to engage a vessel's protuberant tip to effect rotational movement.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: July 18, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joshua Benin, William G. Di Maio, Carl F. Morin