Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5891410 | Process for the purification of an oxidation off gas | Rudolf Modic, Hermann-Josef Korte, Anton Schoengen, Jorg Porschen | 1999-04-06 |
| 5858808 | Process and auxiliary device for fabricating semiconductor devices | Gunter Igel | 1999-01-12 |
| 5614159 | Process for the purification of an oxidation off gas with energy recovery | Rudolf Modic, Hermann-Josef Korte, Anton Schoengen, J org Porschen | 1997-03-25 |
| 5338882 | Process for the production of DMT-intermediate product of specific purity and pure terephthalic acid | Hermann-Josef Korte, Anton Miletic, Hans U. Neutzler, Anton Schoengen, Ralf Wirges | 1994-08-16 |
| 5286896 | Process for the production of DMT-intermediate product of specific purity | Hermann-Josef Korte, Anton Miletic, Hans U. Neutzler, Anton Schoengen, Ralf Wirges | 1994-02-15 |
| 4707274 | Multistage arrangement for countercurrent separation and methods of operating same | Friedrich Donhauser, Anton Schoengen, Jorg Porschen | 1987-11-17 |