Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528098 | Screw driven sludge thickeners | Robert Morawek | 1985-07-09 |
| 4444664 | Process for the biological treatment of a liquid effluent on an adsorbing material bed | — | 1984-04-24 |
| 4338195 | Liquid treatment apparatus | — | 1982-07-06 |