Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7241365 | Material for a facility for the production of anhydrous formic acid | Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +2 more | 2007-07-10 |
| 7105616 | Separation of isobutene non-reacted during polymerization of isobutene | — | 2006-09-12 |
| 7049383 | Polyisobutene composition | Dirk Borchers, Thomas Wettling | 2006-05-23 |
| 7038008 | Method for the processing of a liquid reaction discharge of the cationic polymerization of isobutene | Thomas Wettling, Dirk Borchers | 2006-05-02 |
| 6987165 | Method for producing highly reactive polyisobutenes | Ulrich Kanne, Andre De Vos | 2006-01-17 |
| 6921833 | Method for the continuous production of methyl formate | Jurgen Dahlhaus, Karl Fischer, Hans Hammer, Jochen Kellenbenz, Michael Schulz +2 more | 2005-07-26 |
| 6867329 | Waste water treatment in a method for producing formic acid which is free of water | Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +1 more | 2005-03-15 |
| 6841700 | Method for producing anhydrous formic acid | Bernd Bessling, 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 | Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +2 more | 2005-01-04 |
| 6833057 | Pure ethylene oxide distillation process | Bernd Bessling, Hans Hasse, Jürgen Plückhan, Thomas Mayer | 2004-12-21 |
| 6696603 | Method for cleaning off-gas flows | Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari +2 more | 2004-02-24 |
| 6300467 | Production of polytetrahydrofuran with terminal hydroxyl groups by changing the continuous and dispersed phase | Jurgen Ciprian, Lothar Franz, Wolfgang Franzischka, Gabriele Iffland, Alexander Weck +1 more | 2001-10-09 |
| 6245947 | Treatment for polyether polyols | Bernd Guettes, Gerd Hoeppner, Monika Wetterling, Jens Bruhn, Stefan Dinsch +1 more | 2001-06-12 |
| 6123812 | Process for distilling ethylene oxide | Bernd Bessling, Sebastian Zeck, Jürgen Plückhan, Thomas Mayer, Ulrich Loffler +8 more | 2000-09-26 |
| 6048441 | Isolation of neopentyl glycol hydroxypivalate (NGH) | Siegfried Kruger, Stephan Scholl, Theodor Weber, Johann-Peter Melder | 2000-04-11 |
| 5981688 | Continuous preparation of polytetrahydrofuran by a transesterification cascade with specific destruction of foam | Klaus Beiser, Jurgen Ciprian, Lothar Franz, Wolfgang Franzischka, Ulrich-Dieter Pessel +1 more | 1999-11-09 |
| 5536831 | Obtaining caprolactam by cleavage of molten polycaprolactam | Michael Kopietz, Alan Handerman, Simon Jones, Ulrich Kalck, Claus-Ulrich Priester +3 more | 1996-07-16 |
| 5149861 | Recovery of trialkylamines and methyl formate from mixtures obtained in the preparation of trimethylolalkanes | Franz Merger, Peter Hettinger, Leopold Hupfer, Juergen Paetsch, Heribert Deck +1 more | 1992-09-22 |
| 4984342 | Method for the manufacture of solid electrolyte capacitors | Gernot Winkler | 1991-01-15 |
| 4847309 | Method for making foundry sand containing a resin binder | Wolfgang Klesse, Peter Quis | 1989-07-11 |
| 4585809 | Resin binders for foundry molding sands | Wolfgang Klesse, Peter Quis, Walther W. Szubinski | 1986-04-29 |