Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12410080 | Wastewater filtering method and apparatus comprising filter media of different sizes | Dae Hwan Rhu, Chun Woo Lee, Yong Joon Yune, Jong Goo Kim, Byung Suk Lee +1 more | 2025-09-09 |
| 8603329 | Wastewater treatment apparatus with two-stage multimedia biological filtration process | Dae Hwan Rhu, Yeong Ki Yeo, Se-Wook Seo, Yong June Yune, Byung Suk Lee +1 more | 2013-12-10 |