Patents by Inventor Simon Hsien

Simon Hsien 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).

  • Aesthetically pleasing air freshener
    Patent number: 4860953
    Abstract: This invention relates to a miracle air freshener and in particular to one having a can which has a dried compressed sponge, several pieces of fragrance, a soft wood and a figure. When we pour water into the can, the sponge will absorb water and expand several times of its compressed size and forces the figure strectched out of the can to beautify the place.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: August 29, 1989
    Inventor: Simon Hsien