Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6120687 | Integrated vertical wastewater treatment vessel and method with aeration zone and two secondary clarifiers | — | 2000-09-19 |
| 5630936 | Vertical drainage drying bed for waste sludge and an intensified method of treating wastewater | — | 1997-05-20 |
| 5536420 | Vertical drainage drying bed for waste sludge and an intensified method of treating wastewater | — | 1996-07-16 |