Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797230 | Gas stopper brick for metallurgical vessels with a sealing body that is subject to screw pressure springs | Juergen Kuhlmann, Klaus Ruwier, Rainer Patron | 2004-09-28 |
| 6519829 | Method and device for producing a composite element from a ceramic inner part and a metal jacket | Heinz Kuhlmann, Klaus Ruwier | 2003-02-18 |
| 4401243 | Charging a mold for continuous casting | Gerd Diederich, Rolf Solmecke, Hans Husselmann, Frithjof Schauffele | 1983-08-30 |