Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6905087 | Hose reel device | — | 2005-06-14 |
| 6644877 | Detergent feeding mechanism for a cleaning device | — | 2003-11-11 |
| 6220527 | Cleaning device having cleaning agent provided therein | Chia-Yi Hsieh | 2001-04-24 |
| 6217244 | Sponge mop with a cleaning tank attached thereto | Chia-Yi Hsieh | 2001-04-17 |
| 6146041 | Sponge mop with cleaning tank attached thereto | Chia-Yi Hsieh | 2000-11-14 |
| 5701639 | Securing device for footwear | — | 1997-12-30 |