Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10228104 | Sunlight transmitter | — | 2019-03-12 |
| 8905586 | Natural lighting apparatus and hybrid illumination system using same | Ju Yoon Lee, Kyoo Dong Song | 2014-12-09 |
| 8491138 | Condensing system of solar light for natural lighting | — | 2013-07-23 |