Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9322526 | Optical device for semiconductor based lamp | Keh Shium Liu | 2016-04-26 |
| 9052082 | Optical device for semiconductor based lamp | Keh Shium Liu | 2015-06-09 |
| 8324645 | Optical device for semiconductor based lamp | Keh Shium Liu | 2012-12-04 |
| 5943716 | Air-conditioned bed hood for a baby | — | 1999-08-31 |