Patents by Inventor Hong Y. Huang

Hong Y. Huang 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).

  • Three-dimensional labyrinth
    Patent number: 4824098
    Abstract: A three-dimensional labyrinth comprising a transparent or translucent case within which a plurality of holed, cubic compartments are constructed, and a ball which is placed inside the case in advance. Each cubic compartment has a hole formed through each surface thereof and the ball which is to be moved out of the case can be moved in either way. A plurality of blockades are provided to block some of the holes and changing the route pattern of the labyrinth.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: April 25, 1989
    Inventor: Hong Y. Huang