Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6136178 | Method and apparatus for separating oil from water in wastewater containing an emulsified oil | Qingquan Su | 2000-10-24 |
| 6110352 | Method and apparatus for separating oil from water in wastewater containing an emulsified oil | Qingquan Su, Hiroaki Sato | 2000-08-29 |
| 6093307 | Method and apparatus for separating oil from water in wastewater containing an emulsified oil | Qingquan Su, Hiroaki Sato | 2000-07-25 |
| 5876589 | Method and apparatus for separating oil from water in wastewater containing an emulsified oil | Qingquan Su, Hiroaki Sato | 1999-03-02 |