Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172698 | Anaerobic sludge digester | Sidney E. Clark | 2007-02-06 |
| 5942116 | Anaerobic sludge digester | Sidney E. Clark, John J. Fassbender | 1999-08-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172698 | Anaerobic sludge digester | Sidney E. Clark | 2007-02-06 |
| 5942116 | Anaerobic sludge digester | Sidney E. Clark, John J. Fassbender | 1999-08-24 |