Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985067 | Process and device for implementing hot chemical processes | Wilhelm Stadlbauer, deceased, Erwin Koch, Franz Zauner, Wolfgang Vanovsek | 1991-01-15 |
| 4504308 | Method of operating a metallurgical plant | — | 1985-03-12 |