Patents by Inventor Wu Huang Li-Ming

Wu Huang Li-Ming 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).

  • Paper shredder capable of sharpening pencil
    Patent number: 6164573
    Abstract: A paper shredder comprises a housing in which a paper cutting apparatus, a driving device, a link mechanism, and a pencil sharpening apparatus are disposed. The housing is provided with a paper feeding port and a through hole. Paper is fed into the paper shredder via the paper feeding port. A pencil is inserted into an aperture of the pencil sharpening apparatus via the through hole of the housing. The pencil sharpening apparatus comprises a gear and a cutter meshing with the gear such that the cutter is actuated by the gear to sharpen the pencil that is inserted into the aperture of the pencil sharpening apparatus.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: December 26, 2000
    Inventor: Wu Huang Li-Ming