Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352764 | Method of making slag sand and slag wool | Paul Metz, Roland Mersch | 1982-10-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352764 | Method of making slag sand and slag wool | Paul Metz, Roland Mersch | 1982-10-05 |