Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874640 | Process for separation of bastnaesite from weathered bastnaesite barite fluorite ores | — | 2005-04-05 |
| 6138835 | Recovery of petalite from ores containing feldspar minerals | Timothy Jessup | 2000-10-31 |
| 5693692 | Depressant for flotation separation of polymetallic sulphide ores | Tim M. Jessup, James F. Jackson, Gordon Leighton | 1997-12-02 |
| 5147528 | Phosphate beneficiation process | — | 1992-09-15 |
| 5049612 | Depressant for flotation separation of polymetallic sulphidic ores | Tim M. Jessup, James F. Jackson | 1991-09-17 |
| 4952329 | Separation of polymetallic sulphides by froth flotation | Robert S. Salter | 1990-08-28 |
| 4880529 | Separation of polymetallic sulphides by froth flotation | Robert S. Salter | 1989-11-14 |
| 4877517 | Depressant for flotation separation of polymetallic sulphidic ores | Tim M. Jessup | 1989-10-31 |
| 4853113 | Froth Flotation of bastnaesite | — | 1989-08-01 |
| 4772382 | Froth flotation of bastnaesite | — | 1988-09-20 |
| 4735710 | Beryllium flotation process | — | 1988-04-05 |
| 4735783 | Process for increasing the selectivity of mineral flotation | — | 1988-04-05 |
| 4246096 | Flotation process | — | 1981-01-20 |