Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5925862 | Process for the recovery of cobalt from ores containing metal sulfides | Quentin SCHMIDT | 1999-07-20 |
| 5078860 | Sequential and selective flotation of sulfide ores containing copper and molybdenum | Harold M. Ray | 1992-01-07 |
| 4288315 | Benefication of fluorspar ores | Ulus R. Smith | 1981-09-08 |