Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5728190 | Melting furnace and process for the inertization of hazardous substances by vitrification | Helmut Pieper, Matjaz Bucar | 1998-03-17 |
| 5683484 | Method and apparatus for separating out gall during glass melting processes | Helmut Pieper, Matjaz Bucar | 1997-11-04 |