Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4380496 | Mechanical dewatering process utilizing a nonuniform screw conveyor | — | 1983-04-19 |
| 4245396 | Process for drying and granulating sewage sludge | — | 1981-01-20 |
| 4244287 | Two-stage mechanical dewatering of sewage sludge | — | 1981-01-13 |
| 4237618 | Process for mechanically dewatering sewage sludge | — | 1980-12-09 |
| 4214377 | Mechanical dewatering process | — | 1980-07-29 |
| 4193206 | Processes for drying sewage sludge and filtering water | — | 1980-03-18 |