Patents by Inventor Walter R. Mellen

Walter R. Mellen 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).

  • Multi-ball drop toy
    Patent number: 5503587
    Abstract: A multi-ball drop toy assembly comprising a flexible harness for holding elastically deformable balls in a vertical, spaced-apart array, which when dropped, permits the uppermost ball of the array, to escape the harness after collision with its adjacent ball.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: April 2, 1996
    Inventor: Walter R. Mellen