Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366538 | Process for the production of a metal melt | Harald Berger, Klaus Klintworth | 1994-11-22 |
| 5304230 | Method of disposing of organic and inorganic substances and a plant for carrying out the method | Harald Berger, Otto Koller | 1994-04-19 |