Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9181169 | Process for heterogeneously catalyzed gas phase partial oxidation of (meth)acrolein to (meth)acrylic acid | Cathrin Alexandra Welker-Nieuwoudt, Andrey Karpov, Frank Rosowski, Klaus Joachim Mueller-Engel, Alfons Drochner +6 more | 2015-11-10 |
| 8664449 | Method for the continuous production of 2-butanone in hot pressurized water having an added electrolyte | Christoph Ruedinger, Hans Eberle, Andrea Soler | 2014-03-04 |
| 8044246 | Process for the selective preparation of acetaldehyde from acrolein and one or more ammonium salts dissolved in water | Wolfgang Wenger, Andreas HEYL, Lothar Ott, Paul Hanselmann, Gökhan Aras | 2011-10-25 |
| 6207022 | Purification of crude (meth) acrylic acid | Toni Dockner, Gerhard Nestler, Holger Herbst, Helmut Lermer, Hans Martan +1 more | 2001-03-27 |
| 6090977 | Continuous heterogeneously catalyzed gas-phase partial oxidation of an organic compound | Werner Hefner, Otto Machhammer, Hans-Peter Neumann, Andreas Tenten, Wilhelm Ruppel | 2000-07-18 |
| 5905161 | Regeneration of catalyst used in the preparation of 3,4-epoxy-1-butene | Stefan Boeck, Klaus Herzog, Rolf Fischer, Martin Fischer | 1999-05-18 |
| 5705684 | Preparation of acrolein, acrylic acid or a mixture thereof from propane | Werner Hefner, Otto Machhammer, Hans-Peter Neumann, Andreas Tenten, Wilhelm Ruppel | 1998-01-06 |
| 5684188 | Continuous heterogeneously catalyzed gas-phase oxidation of propylene to acrolein, acrylic acid or a mixture thereof | Werner Hefner, Otto Machhammer, Hans-Peter Neumann, Andreas Tenten, Wilhelm Ruppel | 1997-11-04 |
| 5618954 | Preparation of 3,4-epoxy-1-butene | Stefan Boeck, Klaus Herzog, Rolf Fischer, Martin Fischer | 1997-04-08 |
| 5453365 | Preparation of lactates | Hans-Josef Sterzel, Herbert Exner, Detlef Kratz | 1995-09-26 |
| 5410089 | Preparation of dihydroxyacetone | Eugen Gehrer, Wolfgang Harder, Bernhard Knuth, Klaus Ebel, Carsten Groening | 1995-04-25 |
| 5356460 | Removal of methacrolein from a gaseous mixture | Herbert Exner, Gerd Bohner | 1994-10-18 |
| 5221767 | Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.sup.2 d X.sup.3 e Sb.sub.f Re.sub.g S.sub.h O.sub.n | Karl-Heinz Boehning, Gerd Duembgen, Ulrich Hammon, Richard Krabetz, Franz Merger +2 more | 1993-06-22 |
| 5173468 | Compositions of the formula MO.sub.12 P.sub.a V.sub.b X.sup.1.sub.c X.sup.2.sub.d X.sup.3.sub.e Sb.sub.f Re.sub.g S.sub.h O.sub.n | Karl-Heinz Boehning, Gerd Duembgen, Ulrich Hammon, Richard Krabetz, Franz Merger +2 more | 1992-12-22 |