Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8757834 | Variable shaped lamp shade of LED lamp | Chih-Yang Chang | 2014-06-24 |
| 8757835 | Variable shaped lamp shade of LED lamp | Chih-Yang Chang | 2014-06-24 |
| 8388180 | Variable shaped lamp shade of LED lamp | Chih-Yang Chang | 2013-03-05 |