Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387189 | Surface-cleaning method | Andreas Groschl, Torsten Groth, Volker Hassmann, Jürgen Horn, Winfried Joentgen +2 more | 2002-05-14 |
| 5648517 | Process for the preparation of dialkyl maleates | Nikolaus Muller, Andreas Groschl | 1997-07-15 |
| 5504239 | Process for separating off alkanols from other organic compounds of higher carbon number | Wolf Mehl, Wolfgang Scheinert, Andreas Groschl | 1996-04-02 |
| 5455368 | Process for separating off methanol from a mixture of dimethyl carbonate and methanol | Heinz Landscheidt, Werner Struver, Alexander Klausener | 1995-10-03 |
| 5360923 | Process for separating off alkanols, mixtures of alkanols and water or water itself from oxygen-containing organic compounds of higher carbon number | Andreas Nickel, Wolfgang Arlt, Paul Wagner, Alexander Klausener | 1994-11-01 |