Patents by Inventor Albert T. W. Chan

Albert T. W. Chan 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: 5947789
    Abstract: A toy sword featuring a handle section and a translucent blade section. The handle section houses a light source for illuminating an interior of the blade section. A switch energizes the light source. A translucent multi-colored object, such as a segmented, multicolored disk, is disposed to substantially filter the color of the light illuminating the blade interior. The multi-colored object is mounted in a cage to preclude it from grossly deviating out of the path of the light illuminating the blade interior, but the multi-colored object is free to float within the cage such that natural parrying and thrusting motion of the toy sword in play varies the color of the light illuminating the blade section and increases the excitement of sword play.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: September 7, 1999
    Assignee: Thinkway Trading Corporation
    Inventor: Albert T. W. Chan