Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478851 | Ethylene treatment by gas permeation | Hermann Berwe, Rüdiger Knauf, Matthias Stumpf, Manfred Wolter | 2002-11-12 |
| 6365784 | Preparation of ethylene by gas permeation | Hermann Berwe, Rüdiger Knauf, Matthias Stumpf, Manfred Wolter | 2002-04-02 |
| 5277887 | Process for the preparation of ammonium polyphosphate | Thomas Staffel, Wolfgang Becker | 1994-01-11 |