Patents by Inventor Ching Yean Chen

Ching Yean Chen 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).

  • Toy of equilateral triangular building blocks
    Patent number: 6186856
    Abstract: The present invention concerns a building block toy, characterized in that a single kind of building block is used and in that the building block is of a unique shape. Specifically, the center of a flat equilateral triangular piece and the center of a flat hexagonal piece with the same thickness can be overlapped, and the three conjugated sides of the hexagonal piece can be connected to the three sides of the equilateral triangular piece upon stacking these two pieces in a parallel manner. The length of each side of the equilateral hexagonal piece is ⅓ of that of the side of the equilateral triangular piece. Thus, the parts where the equilateral triangular piece and the equilateral hexagonal piece overlap form three small equilateral triangular pieces (1, 2 and 3) of equal size.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: February 13, 2001
    Inventor: Ching Yean Chen