Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5087328 | Method and apparatus for removing filling gases from coke ovens | Johannes Wegerer, Wilhelm Kandler, Karl Buchberger | 1992-02-11 |
| 4932933 | Apparatus for separating fine solid particles from waste water | Ernst Becker, Manfred Pausch | 1990-06-12 |