Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286391 | Red mud flocculation | John T. Malito | 1994-02-15 |
| 5284634 | Purification of Bayer process liquors using cationic polymeric quaternary ammonium salts | John T. Malito | 1994-02-08 |