Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6652759 | Method of treating waste water and apparatus for treating waste water using the method | Keiji Hirano, Junji Okamura, Mitsuaki Ikeda, Kunio Sano | 2003-11-25 |
| 6589432 | Method and apparatus for processing biologically hardly degradable waste water capable of reducing ozone | — | 2003-07-08 |