Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475448 | Method for the separation of ruthenium from noble metal solutions | Matthias Grehl, Horst Meyer | 2002-11-05 |
| 6475449 | Method for extracting osmium and ruthenium from noble metal concentrates | Matthias Grehl, Horst Meyer | 2002-11-05 |