Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4666512 | Method for recovering vanadium from vanadium-containing ore | Donald J. Hansen, John Goddard | 1987-05-19 |
| 4230677 | Recovery of Cr.sub.2 O.sub.3 from a chromium bearing solution | Tadashi J. Kagetsu, William B. De Atley, Joseph S. Fox | 1980-10-28 |