Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10273562 | Acid leaching of rare earth minerals | David Dreisinger | 2019-04-30 |
| 8585991 | Method for recovering indium, silver, gold and rare, precious and base metals from complex oxide and sulfide ores | David Dreisinger, Ralph Fitch | 2013-11-19 |