Patents by Inventor Pao-Feng P. Chang

Pao-Feng P. Chang 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).

  • Patent number: 5374216
    Abstract: A movable toy includes a toy body having movable hands and tail, a motor and an electric board are disposed in the toy body, a pair of barrels are located close to the hands for rotatably supporting two shafts which extend into the hands, a stub is located close to the tail portion for rotatably supporting a rod which extends into the tail portion, the shafts and the rod are coupled to the motor and driven by the motor, the hands and the tail portion are rotated when the motor is energized. A light-sensitive resistor is connected to the motor for controlling the motor.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: December 20, 1994
    Inventors: Hou-Chin Jung, Pao-Feng P. Chang