Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11326345 | Hollow composite beam using dual-web and construction method thereof | Heung Youl Kim | 2022-05-10 |
| 11242982 | Lighting unit and rail type lighting device comprising same | Gil Hun Shin | 2022-02-08 |