Patents by Inventor Stephen E. Ryan

Stephen E. Ryan 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).

  • Detachable child seat and supporting frame
    Patent number: 5265931
    Abstract: An infant/child seat and frame combination is disclosed wherein the seat is mountable and de-mountable to and from the frame by a combination of seat back hooks and seat bottom positioning elements engageable with compatibly configured frame members on the frame. Various frame configurations may be constructed to accept the seat, e.g., a car seat frame, a stroller frame, a high chair frame, or a wheelchair frame, so that the same seat may be moved from one frame to another to serve varying purposes.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: November 30, 1993
    Assignee: Ontario Cripple Children's Centre
    Inventor: Stephen E. Ryan