Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406624 | Flocculation apparatus and apparatus for floating upwardly in a liquid and for moving downwardly in the liquid under the influence of gravity | — | 2002-06-18 |
| 5605653 | Liquid circulation apparatus | — | 1997-02-25 |
| 4710292 | Digester tank with foam control cover | — | 1987-12-01 |