Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12235147 | Apparatus and method for sensing water level | Young-Hwan Choi | 2025-02-25 |
| 12215895 | Carbon monoxide leak alerting device and method | Young-Hwan Choi, Jung-Jae Jang | 2025-02-04 |
| 12117206 | System and method for discharging carbon monoxide by using carbon monoxide leakage alarm device | Young-Hwan Choi, Jung-Jae Jang | 2024-10-15 |
| 12051314 | Gas and earthquake detector, gas and earthquake remote monitoring system using the same and method thereof | Sung Hwan Choi, Young-Hwan Choi | 2024-07-30 |
| 11320548 | Apparatus and method for detecting earthquake using accelerometer | Young-Hwan Choi | 2022-05-03 |