Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175766 | Apparatus and method for performing tertiary treatment of sewage based on porous filtering media | Young Sug Kim, Hong-Kyu Jang, Chung-Hee Chang, Chai-Sung Gee | 2007-02-13 |
| 5995012 | System status displaying device | Jae-Hoon Lee | 1999-11-30 |
| 5156872 | Juice extractor | — | 1992-10-20 |