Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8053995 | LED light string without additional resistors | Cheng-Fen Chang, Chen-Hsien Chang, Chen-Tao Chang | 2011-11-08 |
| 8044599 | Light string with alternate LED lamps and incandescent lamps | Cheng-Fen Chang, Chen-Hsien Chang, Chen-Tao Chang | 2011-10-25 |