Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7642183 | High power, high luminous flux light emitting diode and method of making same | Yongsheng Zhao, William W. So, Kevin Ma, Chyi Shyuan Chern, Heng Liu | 2010-01-05 |
| 7193245 | High power, high luminous flux light emitting diode and method of making same | Yongsheng Zhao, William W. So, Kevin Ma, Chyi Shyuan Chern, Heng Liu | 2007-03-20 |
| 6650018 | High power, high luminous flux light emitting diode and method of making same | Yongsheng Zhao, William W. So, Kevin Ma, Chyi Shyuan Chern, Heng Liu | 2003-11-18 |