| 7462277 |
Continuous method for separating a C4 cut |
Thomas Hill, Klaus Kindler, Bernd Heida |
2008-12-09 |
| 7432411 |
Continuous method for obtaining butenes from a C4 fraction |
Bernd Heida, Klaus Kindler |
2008-10-07 |
| 7241365 |
Material for a facility for the production of anhydrous formic acid |
Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer +2 more |
2007-07-10 |
| 6943274 |
Method for the production of cyclohexanol from benzene |
Werner Peschel, Harald Rust, Arnd Bottcher, Thomas Hill, Ulrich Müller +1 more |
2005-09-13 |
| 6867329 |
Waste water treatment in a method for producing formic acid which is free of water |
Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer +1 more |
2005-03-15 |
| 6841700 |
Method for producing anhydrous formic acid |
Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer +1 more |
2005-01-11 |
| 6838579 |
Utilization of an extracting agent as antifoaming agent in the production of anhydrous formic acid |
Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer +2 more |
2005-01-04 |
| 6696603 |
Method for cleaning off-gas flows |
Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer +2 more |
2004-02-24 |
| 6605192 |
Method for producing highly pure monoethylene glycol |
Gerhard Theis, Bernd Bessling, Hans Hasse, Frans Vansant |
2003-08-12 |
| 6514388 |
Method for producing highly pure monoethylene glycol |
Bernd Bessling, Hans Hasse, Frans Vansant, Gerhard Theis |
2003-02-04 |
