Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8851704 | Seamless connecting shell and lighting device using the same | Li-Chung Peng | 2014-10-07 |
| 8833961 | Multi-purpose illumination device | — | 2014-09-16 |
| D696812 | Lamp holder | Li-Chung Peng | 2013-12-31 |
| D691751 | Lamp tube | Li-Chung Peng | 2013-10-15 |
| 8405013 | Solar tracking device and tracking method thereof | Yi-Chieh Chang | 2013-03-26 |
| 8324547 | Solar tracking and concentration device | Yi-Chieh Chang | 2012-12-04 |
| 8164038 | Light source direction detection device and method for detecting light source direction | Yi-Chieh Chang | 2012-04-24 |
| 8129668 | Solar tracking and concentration device | Yi-Chieh Chang | 2012-03-06 |
| 8097803 | Solar energy system | Yi-Chieh Chang | 2012-01-17 |
| 7908272 | Universal information code format for two dimensional bar code and interactive information exchange system using the same | Yi-Chieh Chang | 2011-03-15 |