Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8884063 | Continuous process for the hydrogenation of 3-cyano-3,5,5-trimethyl-cyclohexylimine | Martin Ernst, Piotr Makarczyk, Johann-Peter Melder | 2014-11-11 |
| 8497399 | Process for preparing aminoalkyl nitriles and diamines from such nitriles | Jan Eberhardt, Thilo Hahn, Johann-Peter Melder, Gerhard Fritz, Volkmar Menger | 2013-07-30 |
| 8362308 | Process for preparing a C4-olefin mixture by selective hydrogenation and metathesis process for using this stream | Jurgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Roper | 2013-01-29 |
| 8323610 | Catalyst for the oxidation of SO2 to SO3 | Michael Kramer, Markus Schubert, Thomas Lautensack, Reinhard Korner, Frank Rosowski +1 more | 2012-12-04 |
| 8067334 | Selective hydrogenation catalyst | Hermann Petersen, Germain Kons, Henrik Junicke | 2011-11-29 |
| 8063239 | Process for preparing aminoalkylnitriles and diamines from such nitriles | Jan Eberhardt, Thilo Hahn, Johann-Peter Melder, Gerhard Fritz, Volkmar Menger | 2011-11-22 |
| 8017808 | Process for preparing an amine | Jan Eberhardt, Bram Willem Hoffer, Frank Haese, Johann-Peter Melder, Bernd Stein +2 more | 2011-09-13 |
| 7923588 | Process for preparing a C4-olefin mixture by selective hydrogenation and metathesis process for using this stream | Jurgen Stephan, Andreas Brodhagen, Markus Schubert, Frank Poplow, Michael Roper | 2011-04-12 |
| 7622412 | Method for regenerating a hydrogenation catalyst | Mathias Haake, Harald Dialer | 2009-11-24 |
| 7518024 | Process for preparing 1-butene | Gotz-Peter Schindler, Andreas Brodhagen, Thorsten Johann | 2009-04-14 |
| 7497931 | Distillative preparation of IPDA having a high cis/trans isomer ratio | Frank Funke, Jobst Rüdiger von Watzdorf, Wolfgang Mattmann, Wolfgang Harder, Erhard Henkes +2 more | 2009-03-03 |
| 7485761 | Method for producing 1-butene | Gotz-Peter Schindler, Andreas Brodhagen, Thorsten Johann, Marcus Sigl, Regina Benfer | 2009-02-03 |
| 7482500 | Preparation of butadiene | Thorsten Johann, Gotz-Peter Schindler, Andreas Brodhagen, Sven Crone, Regina Benfer +1 more | 2009-01-27 |
| 7462277 | Continuous method for separating a C4 cut | Till Adrian, Klaus Kindler, Bernd Heida | 2008-12-09 |
| 7393992 | Method for working up crude 1,3-butadiene | Klaus Kindler, Bernd Heida | 2008-07-01 |
| 7256313 | Method for the production of isophorondiamine (ipda, 3-aminomethyl-3,5,5-trimethyl- cyclohexylamine) having a high cis/tran-isomer ratio | Frank Funke, Jobst Rüdiger von Watzdorf, Wolfgang Mattmann, Wolfgang Harder, Erhard Henkes +2 more | 2007-08-14 |
| 7060857 | Method for the production of isophorondiamine (ipda,3-aminomethyl-3,5,5-trimethylcyclohexylamine) | Frank Funke, Johann-Peter Melder, Ekkehard Schwab, Walter Himmel, Erhard Henkes +2 more | 2006-06-13 |
| 6943274 | Method for the production of cyclohexanol from benzene | Werner Peschel, Till Adrian, Harald Rust, Arnd Bottcher, Ulrich Müller +1 more | 2005-09-13 |
| 4927621 | Purification of anhydrous hydrogen chloride | Joseph F. Repman, Thomas E. Morris | 1990-05-22 |