Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4427571 | Composition for stripping gold or silver from particulate materials | Alan Parker | 1984-01-24 |
| 4308239 | Obtaining copper (I) chloride from ores with acetonitrile | Alan Parker, Eric J. Grimsey, John Preston | 1981-12-29 |
| 4229212 | Recovery of copper from materials containing copper and acid soluble iron compounds | Alan Parker | 1980-10-21 |