Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284249 | Direct hydraulic drive for large flotation cells | Andres Paredes, Roderick R. Roy | 1994-02-08 |
| 5205926 | Froth flotation machine | — | 1993-04-27 |
| 4425232 | Flotation separation apparatus and method | Michael J. Prevett, Eugene L. Smith, Jr. | 1984-01-10 |