Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679262 | Method for alkaline treatment of sewage sludge for beneficial use | Donald L. Clark | 1997-10-21 |
| 5435923 | Method for the treatment of sewage sludge and the like | — | 1995-07-25 |
| 5259528 | Combination food, drink, utensil and napkin tray | Michael A. Pace | 1993-11-09 |
| 5259977 | Method and apparatus for the treatment of sewage sludge and the like | Jerome F. Dausman | 1993-11-09 |
| 5215670 | Process of drying and pelletizing sludge in indirect dryer having recycled sweep air | — | 1993-06-01 |
| 5069801 | Indirect heat drying and simultaneous pelletization of sludge | — | 1991-12-03 |