Patents by Inventor Ren-Yi Hwang

Ren-Yi Hwang 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).

  • Kinetic art article assembly with stacked color filters
    Patent number: 5151829
    Abstract: A kinetic art article assembly with stacked color filter comprises a base, two support plates, a cylindrical main body with a front main body and a rear main body, a fluid governor, and a drive mechanism. At least a set of plate assembly is disposed in the front main body and the rear main body. The plate assembly has a front plate, a flat plate and a rear plate. Each of the flat plate and the rear plate has a tube thereon so that liquid in the tube can flow in to the recesses of the front plate or the rear plate.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: September 29, 1992
    Inventor: Ren-Yi Hwang