Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9658138 | Container fixing holder of time-series sediment trapping device | Dong Jin Ham, Gun-Chang Lee, Kyeong-Hong Kim, Hyoung-Jeek Kim | 2017-05-23 |
| 9416654 | Compound sample extraction apparatus | Gun-Chang Lee, Dong Jin Ham, Kyeong-Hong Kim | 2016-08-16 |