Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6053042 | Frequency-analysis-type water level measuring method and device therefor | Jeong-Ki Hwang, Sang Gyoon Chang, Hyun Min Kim, Choong-Hee Jo | 2000-04-25 |
| 5633901 | Permanent pool cavity seal for nuclear reactor | In-Yong Kim, Gyu Mahn LEE, Jeong-Ki Hwang, Tae-Myung Shin, Beom-Shig Kim | 1997-05-27 |