Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6192973 | Strip casting plant | Klaus Schwerdtfeger, Karl-Heinz Spitzer, Ulrich Urlau, Dietmar Franke, Joachim Kroos +1 more | 2001-02-27 |
| 4922505 | Plant for utilization of exhaust gases of an electric steel furnace | Paul van Ackeren, Karl-Heinz Schmitz, Gunter Kleff, Heinrich Becker | 1990-05-01 |