Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4960461 | Method and installation for extracting gold from gold ore | Mohammed Esna-Ashari, Hans Kellerwessel, Ludwig Gemmer | 1990-10-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4960461 | Method and installation for extracting gold from gold ore | Mohammed Esna-Ashari, Hans Kellerwessel, Ludwig Gemmer | 1990-10-02 |