Patents by Inventor Hsueh-Yu Wan

Hsueh-Yu Wan 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: 5980109
    Abstract: A self-tied garbage bag includes a pair of walls united along their lower ends and sides to form a container which has a top with an opening, a bottom and pair of lateral edges. A bond strip extends at one or both lateral edges of the container between a lower point which is spaced from the bottom of the container and an upper point which is spaced from the top of the container. The lower point of the bond strip is in the form of a sharp tip. A tear line extends along the bond strip from the lower point to a division portion which is disposal in proximity to the upper point of the bond strip. This tear line, being ruptured, separates a tie strip from the bond strip, however, integrally joining the tie-strip to the container at a division portion. The container has a wider upper part extending above the bondstrip, a wider bottom part extending below the bond strip, and a narrower middle part extending between the upper and bottom parts of the container.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: November 9, 1999
    Inventor: Hsueh-Yu Wan