Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4451290 | Recovery of platinum group metals from scrap and residues | John C. Hill | 1984-05-29 |
| 4448604 | Recovery of precious metals from leach residues | Jeffrey Taylor | 1984-05-15 |
| 4428768 | Process for the recovery of platinum group metals from refractory ceramic substrates | — | 1984-01-31 |
| 4427442 | Recovery of platinum group metals, gold and silver from scrap | — | 1984-01-24 |
| 4244736 | Yttrium containing alloys | — | 1981-01-13 |