Patents by Inventor Henry J. O'Keeffe

Henry J. O'Keeffe 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).

  • Support device for use with chairs
    Patent number: 5226439
    Abstract: A support device (10) for use with chairs (100) wherein the support device (10) includes an enlarged generally flat rectangular base member (13) provided with a pair of adjustable support arm members (15) on its sides wherein the weight of the chair (100) enhances the frictional engagement of the bottom surface (13") of the base member (13) with the floor even before the user attempts to sit in the chair (100) or otherwise comes into contact with the support device (10).
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: July 13, 1993
    Inventors: Henry J. O'Keeffe, Patricia D. O'Keeffe