Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681481 | Process and apparatus for liquid sludge stabilization | Richard W. Christy | 1997-10-28 |
| 5618442 | Process for treatment of sewage sludge | — | 1997-04-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681481 | Process and apparatus for liquid sludge stabilization | Richard W. Christy | 1997-10-28 |
| 5618442 | Process for treatment of sewage sludge | — | 1997-04-08 |