Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D459009 | String lamp | Chu-Cheng Chang, Zheng Chang | 2002-06-18 |
| 6328593 | Set of fancy lamp bulb and socket adaptor | Chu-Chen Chang, Zheng Chang | 2001-12-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D459009 | String lamp | Chu-Cheng Chang, Zheng Chang | 2002-06-18 |
| 6328593 | Set of fancy lamp bulb and socket adaptor | Chu-Chen Chang, Zheng Chang | 2001-12-11 |