Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11779964 | Water pipe cleaning system using high-pressure nitrogen and water pipe cleaning method using same | Byung-jun Kim | 2023-10-10 |
| 7770323 | Prefabrication type flowerpot block | Jung Hoi Kim | 2010-08-10 |