Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10150712 | Compositions with improved urease-inhibiting effect comprising (thio)phosphoric acid triamide and further compounds | Karl-Heinrich Schneider, Claudia Klodwig, Gregor Pasda, Alexander Wissemeier, Daniella Lohe +6 more | 2018-12-11 |
| 8603211 | Mixture for the treatment of urea-containing fertilizers | Gerd Buehler, Alexander Wissemeier, Wolfgang Weigelt | 2013-12-10 |
| 8110536 | Bleach systems enveloped with polymeric layers | Frank Dietsche, Karl Haeberle, Dietmar Haering | 2012-02-07 |
| 8075659 | Preparations with improved urease-inhibiting effect and urea-containing fertilizers containing the latter | Alexander Wissemeier, Patrick Deck, Oliver Huttenloch, Michael Mauβ, Gregor Pasda +2 more | 2011-12-13 |
| 7253280 | Two-stage reactor for the production of melamine | Christian Kuhrs, Eckehard Danz, Wolfgang Steiner, Thomas Grassler, Reiner Geier +2 more | 2007-08-07 |
| 7217679 | Catalytic coating for the hydrogenation of maleic anhydride and related compounds to give γ-butyrolactone, tetrahydrofuran and derivatives thereof | Holger Borchert, Stephan Schlitter, Rolf Fischer, Markus Rösch, Frank Stein +1 more | 2007-05-15 |
| 6958404 | Method for the hydrogenation of maleic anhydride and related compounds in a fluid bed reactor | Holger Borchert, Stephan Schlitter, Michael Hesse, Frank Stein, Rolf Fischer +2 more | 2005-10-25 |
| 6921830 | Method for purifying an organic solvent for the purposes of absorption of maleic acid anhydride | Alexander Weck, Gerd Kaibel | 2005-07-26 |
| 6888011 | Porous catalyst for the hydrogenation of maleic anhydride to tetrahydrofuran | Holger Borchert, Stephan Schlitter, Markus Rösch, Rolf Fischer, Alexander Weck | 2005-05-03 |
| 6846389 | Method for distillative separation of mixtures containing tetrahydrofuran, γ-butyrolactone and/or 1,4-butanediol | Gerd Kaibel, Alexander Weck | 2005-01-25 |
| 6831182 | Method for the hydrogenation of maleic anhydride and related compounds in two serial reaction zones | Holger Borchert, Stephan Schlitter, Rolf Fischer, Markus Rösch, Frank Stein +2 more | 2004-12-14 |
| 6730800 | Method for the production of tetrahydrofuran | Rolf Fischer, Frank Stein, Rolf Pinkos, Michael Hesse, Michael Jolyon Sprague +4 more | 2004-05-04 |
| 6433192 | Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone | Rolf Fischer, Gerd Kaibel, Rolf Pinkos | 2002-08-13 |
| 6350924 | Method for producing 1,4-butanediol | Rolf Fischer, Gerd Kaibel, Rolf Pinkos | 2002-02-26 |
| 6346629 | Method for producing butyrolactones | Melanie Brunner, Udo Rheude, Jochem Henkelmann | 2002-02-12 |
| 6329532 | Method for separating maleic anhydride from maleic anhydride-containing mixtures by stripping | Rolf Pinkos | 2001-12-11 |
| 6316680 | Isolation of .alpha.-ethynyl carbinols by distillation | Harald Rust, Thomas Ruhl, Jochem Henkelmann, Susanne Stutz | 2001-11-13 |
| 6054628 | Reacting Grignard compounds with carbonyl compounds and ensuing hydrolysis | Manfred Stroezel, Udo Rheude, Gerd Kaibel | 2000-04-25 |
| 5603813 | Purifying distillation of vinyl formate | Thomas Ruhl, Marc Heider, Jochem Henkelmann, Harald Rust | 1997-02-18 |