Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11840882 | Water-blocking device | Hyung Jun Kim | 2023-12-12 |
| 11447996 | Structure for operating watertight door by buoyancy | In Hwan Park, Ho Je Seong | 2022-09-20 |
| 11326924 | Device for measuring water level by using capacitive technique, and method therefor | — | 2022-05-10 |
| 9534369 | Inlet of underground reservoir having multiple-stage structure | Gil Je Cho, Du Han Lee, Seung Yong Hwang, Myoung Hwan Kim | 2017-01-03 |