Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7604733 | Apparatus for biological removal of phosphorus and nitrogen using granulated methane-oxidizing bacteria | Kwang Soo Kim, Hee Ja Lee, I-Tae Kim, Kwang Ho Ahn, Sung Youn Kim +5 more | 2009-10-20 |
| 7520991 | Biological method for removing phosphorus and nitrogen from water using granulated methane-oxidizing bacteria | Kwang Soo Kim, Hee Ja Lee, I-Tae Kim, Kwang Ho Ahn, Sung Youn Kim +5 more | 2009-04-21 |
| 7175766 | Apparatus and method for performing tertiary treatment of sewage based on porous filtering media | Young Sug Kim, Moon-Hyoung Lee, Hong-Kyu Jang, Chung-Hee Chang | 2007-02-13 |
| 7060185 | Sewage treatment apparatus using self-granulated activated sludge and sewage treatment method thereof | Kwang Soo Kim, Hee Ja Lee, Chang W. Kim, Byung-Won Seo, Kwang Ho Ahn +2 more | 2006-06-13 |