Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11767195 | Safety inspection system for occupant evacuation elevator, and method thereof | Seung Un Chae, Heung Youl Kim, Ki-Seok Kwon | 2023-09-26 |
| 11577933 | System for supporting evacuation strategy using occupant evacuation elevator, and method thereof | Seung Un Chae, Heung Youl Kim, Ki-Seok Kwon | 2023-02-14 |
| 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 |
| D930881 | Lighting apparatus | Gil Hun Shin | 2021-09-14 |
| D898267 | Lighting apparatus | Gil Hun Shin | 2020-10-06 |
| 10737405 | Self-pouring mold system and method of fire-proofing, repairing, and reinforcing using the same | Heung Youl Kim | 2020-08-11 |
| D866846 | Lighting apparatus | Jun Ho Jang, Jin Myeong Kim | 2019-11-12 |
| 10267041 | Anchoring wedge with separable bolt and method of anchoring tendon using the same | Heung Youl Kim | 2019-04-23 |
| 9856647 | Non-welding type concrete-filled steel tube column using straight bolt connection slot and wave-shaped punching steel plate and method of constructing the same | Heung Youl Kim | 2018-01-02 |