Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9579007 | Dusting device | Ya-Ching Yang, Yi-Jun Pan | 2017-02-28 |
| 7681275 | Dust cloth texture | Ya-Ching Yang | 2010-03-23 |
| 7251851 | Spiral duster | Yi-Jun Pan | 2007-08-07 |
| 7051877 | Napkin container having openable and sealable cover | — | 2006-05-30 |
| 6978509 | Cleansing device having cleansing fibers | — | 2005-12-27 |