| 7241365 |
Material for a facility for the production of anhydrous formic acid |
Heinz Auer, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +2 more |
2007-07-10 |
| 6867329 |
Waste water treatment in a method for producing formic acid which is free of water |
Heinz Auer, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +1 more |
2005-03-15 |
| 6841700 |
Method for producing anhydrous formic acid |
Heinz Auer, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +1 more |
2005-01-11 |
| 6838579 |
Utilization of an extracting agent as antifoaming agent in the production of anhydrous formic acid |
Heinz Auer, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +2 more |
2005-01-04 |
| 6833057 |
Pure ethylene oxide distillation process |
Hans Hasse, Jürgen Plückhan, Thomas Mayer, Heinz Auer |
2004-12-21 |
| 6696610 |
Continuous preparation of monoethanolamine, diethanolamine and triethanolamine |
Werner Peschel, Axel Hildebrandt |
2004-02-24 |
| 6696603 |
Method for cleaning off-gas flows |
Heinz Auer, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +2 more |
2004-02-24 |
| 6605192 |
Method for producing highly pure monoethylene glycol |
Gerhard Theis, Till Adrian, Hans Hasse, Frans Vansant |
2003-08-12 |
| 6570026 |
Method for producing phthalic anhylic anhydride according to specifications |
Werner Peschel, Peter Reuter, Peter Michael Lorz, Bernhard Ulrich, Jean Werner Knab +2 more |
2003-05-27 |
| 6514388 |
Method for producing highly pure monoethylene glycol |
Till Adrian, Hans Hasse, Frans Vansant, Gerhard Theis |
2003-02-04 |
| 6362386 |
Method and device for obtaining isobutenes from conjugated hydrocarbons |
Jean Werner Knab, Wolfgang Brox, Bernd Lohe |
2002-03-26 |
| 6123812 |
Process for distilling ethylene oxide |
Sebastian Zeck, Jürgen Plückhan, Thomas Mayer, Ulrich Loffler, Gunter Spiegel +8 more |
2000-09-26 |
| 6028215 |
Process for preparing esters of carboxylic acids |
Bernd Lohe, Rudiger Welker, Walter Disteldorf, Jean Werner Knab |
2000-02-22 |
