Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H715 | Recovery of mercury from acid waste residues | — | 1989-12-05 |
| 4851156 | Retention of radio-ruthenium in acid processing of nuclear waste | Charles Robert Allen, Richard Grimes Cowan | 1989-07-25 |