Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172698 | Anaerobic sludge digester | John R. Currie | 2007-02-06 |
| 5942116 | Anaerobic sludge digester | John R. Currie, John J. Fassbender | 1999-08-24 |
| 5409610 | Method for anaerobic sludge digestion | — | 1995-04-25 |