Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7468596 | Battery charger for various sizes of batteries with selection of appropriate charging power | — | 2008-12-23 |
| 6900402 | Pushbutton switch with LED indicator | Yuk Nam Lam | 2005-05-31 |
| 6876172 | Portable battery charge | Yuk Nam Lam | 2005-04-05 |
| D490053 | Charger | — | 2004-05-18 |
| 6710577 | Battery charger | — | 2004-03-23 |
| D457134 | DC adaptor | Yuk Nam Lam | 2002-05-14 |
| D446187 | AC adaptor | Yuk Nam Lam | 2001-08-07 |