Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8293075 | Method for the continuous separation by distillation of mixtures that contain morphonline (MO), monoaminodiglycol (ADG), ammonia and water by means of distillation | Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius +2 more | 2012-10-23 |
| 8246793 | Method for the continuous separation of mixtures comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water by means of distillation | Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius +2 more | 2012-08-21 |
| 8197646 | Processes for continuous fractional distillation of mixtures comprising morpholine, monoaminodiglycol, ammonia and water | Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius +2 more | 2012-06-12 |
| 7994350 | Process for continuously preparing N-ethyl-2-pyrrolidone (NEP) | Ralph Versch, Silke Simon, Karl-Heinz Ott, Ronald Drews, Stephanie Mollner | 2011-08-09 |
| 7825281 | Method for producing electronic grade 2,2′-aminoethoxyethanol | Martin Rudloff | 2010-11-02 |
| 7753970 | Polyalkene amines with improved applicational properties | Marco Bergemann, Harald Schwahn, Dietmar Posselt, Erich K. Fehr, Thomas Wettling +1 more | 2010-07-13 |
| 7227029 | Method for the continuous production of N-methyl-2-pyrrolidone (NMP) | Martin Rudloff, Peter Stops, Erhard Henkes, Rolf Fischer, Manfred Julius +2 more | 2007-06-05 |
| 7164031 | Method for the production of 2-pyrrolidone | Martin Rudloff, Peter Stops, Erhard Henkes, Rolf Fischer, Manfred Julius +2 more | 2007-01-16 |