Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D676585 | Lamp | CHENG-HSIU DU | 2013-02-19 |
| D671238 | LED bulb lamp | CHENG-HSIU DU, Chang Hung Chiang | 2012-11-20 |
| D671239 | LED bulb lamp | CHENG-HSIU DU, Chang Hung Chiang | 2012-11-20 |