Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12194519 | Unequal-channel angular self-bending extrusion die and method for designing and manufacturing the same and extruding method thereof | Guangming Zhu, Fanlei Min, Huiping Liu | 2025-01-14 |
| D459009 | String lamp | Chu-Cheng Chang, Zheng-Xian Chang | 2002-06-18 |
| 6328593 | Set of fancy lamp bulb and socket adaptor | Chu-Chen Chang, Zheng-Xian Chang | 2001-12-11 |