Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9938168 | Apparatus and method for water treatment using in-situ activation of manganese dioxide catalyst | Seok Won Hong, Yunchul Chung, Sanghyup Lee, Boyoung Jeong | 2018-04-10 |
| 8721886 | River water purification apparatus and method using treatment soil layer and permeable filtering medium layer | Kyu Hong Ahn, Kyung Guen Song, Dong-Won Ki, Jin-woo Cho, Se Yeon Won +2 more | 2014-05-13 |