Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286008 | System for inerting a casting vessel used for transporting molten metal | Hans De Haas, Klaus Ulrich, Klaus Grutzmacher, Erhard Krause, Horstmar Mohnkern +3 more | 1994-02-15 |
| 5246485 | Method and apparatus for preventing fume production when transporting molten metal from a metallurgical vessel to casting vessels | Hans De Haas, Klaus Ulrich, Klaus Grutzmacher, Erhard Krause, Horstmar Mohnkern +3 more | 1993-09-21 |