Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D889717 | Light emitting diode (LED) lamp device | Duk-Yong Kim, Hyun Ki Kim, Ki Seong Roh, Sang Cheol Lee | 2020-07-07 |
| 10060608 | Detachable LED lighting device | Duk-Yong Kim | 2018-08-28 |
| 9990847 | Traffic accident occurrence notification system using LED display lamps | Duk-Yong Kim, Yoon-Bae Lee, Seok Sung, Jong Hun Lee, Min Soo Kim +1 more | 2018-06-05 |