Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5098069 | Equipment and regulating means for recovering metal-carbide scrap by alloying | Erwin Wanetzky, Franz Hugo | 1992-03-24 |
| 4818282 | Method for recovering metal-carbide scrap by alloying | Erwin Wanetzky, Franz Hugo | 1989-04-04 |
| 4407488 | Distillation and sublimation apparatus comprising a condenser | Erwin Wanetzky, Franz Hugo | 1983-10-04 |