Patents by Inventor Donald H. Stephens

Donald H. Stephens 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).

  • Doll or the like with position and motion sensing switch
    Patent number: 4751353
    Abstract: A device which senses position through a conductive ball which may be seated on one of a plurality of pairs of contacts in a cavity within a housing in accordance with the angular position of the sensor and which also senses motion through movement of the ball making and breaking contacts as the device is subjected to movement.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: June 14, 1988
    Assignee: Coleco Industries, Inc.
    Inventor: Donald H. Stephens