Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10710316 | Vacuum knife tool | Dae-Young Park, Jong Keun Lee, John J. Park, Seung Jo Myung | 2020-07-14 |
| 10350831 | Vacuum knife tool | Dae-Young Park, Jong Keun Lee, John J. Park, Seung Jo Myung | 2019-07-16 |