Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4678419 | Arrangement for the production of vitrified slag | Bernhard Enkner, Leopold Schropp, Wilhelm Stastny | 1987-07-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4678419 | Arrangement for the production of vitrified slag | Bernhard Enkner, Leopold Schropp, Wilhelm Stastny | 1987-07-07 |