Patents by Inventor Hsu-Shan Tzeng

Hsu-Shan Tzeng 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).

  • Organizer cover having a loose-leaf holder attached thereto
    Patent number: 5704646
    Abstract: An organizer cover comprises a front cover, a back cover, and a loose-leaf holder for holding loose leaves. The front cover and the back cover are of a sacklike construction and are capable of holding therein a mono-phase or two-phase liquid. Located between the front cover and the back cover is a connection portion to which the loose-leaf holder is fastened. The front cover and the back cover are made of transparent or translucent plastic skin. The mono-phase or two-phase liquid contained in the front cover and the back cover may further contain small solid pieces. Various patterns are brought about on the surfaces of the front cover and the back cover when the mono-phase or two-phase liquid flows about in the interiors of the front cover and the back cover.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: January 6, 1998
    Inventor: Hsu-Shan Tzeng