Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11109461 | LED lighting apparatus capable of color temperature control | Keith Hopwood, Hyung-Jin Lee, Sang Wook Han | 2021-08-31 |
| 11011320 | Bus stop using large-scale perovskite solar cell | Jinhwan Yoon, Heon-Cheol Shin, Yang Do Kim, Jin Woo OH, Sung Il Ahn +3 more | 2021-05-18 |
| 10890222 | Caliper brake | — | 2021-01-12 |