Patents by Inventor William M. Hanlon, III

William M. Hanlon, III 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).

  • Kaleidoscope
    Patent number: D307162
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: April 10, 1990
    Inventor: William M. Hanlon, III
  • Return top
    Patent number: D316882
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: May 14, 1991
    Assignee: DaMert Company
    Inventor: William M. Hanlon, III
  • Motion picture viewer
    Patent number: D345571
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: March 29, 1994
    Assignee: DaMert Co.
    Inventor: William M. Hanlon, III