Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324582 | Process for the recovery of copper from its ores | Paul R. Kruesi | 1982-04-13 |
| 4323390 | Process for converting brass scrap to copper powder | Paul R. Kruesi | 1982-04-06 |
| 4321089 | Process for the recovery of molybdenum and rhenium from their sulfide ores | Paul R. Kruesi | 1982-03-23 |
| 4311520 | Process for the recovery of nickel, cobalt and manganese from their oxides and silicates | Paul R. Kruesi | 1982-01-19 |