Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7393436 | Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers | Bernd Eck, Ulrich Hammon, Klaus Joachim Mueller-Engel, Juergen Schroeder, Joachim Thiel | 2008-07-01 |
| 7326802 | Preparation of at least one partial oxidation and/or ammoxidation product of propylene | Claus Hechler, Gotz-Peter Schindler, Jochen Petzoldt, Christoph Adami, Otto Machhammer +1 more | 2008-02-05 |
| 7238827 | Preparation of at least one partial oxidation and/or ammoxidation product of propylene | Claus Hechler, Gotz-Peter Schindler, Jochen Petzoldt, Christoph Adami, Otto Machhammer +1 more | 2007-07-03 |
| 7179875 | Method for producing water-absorbent resins | Eberhard Fuchs, Gerhard Nestler, Klaus Joachim Mueller-Engel | 2007-02-20 |
| 7157598 | Method for producing an aqueous alkali acrylate solution | Eberhard Fuchs, Klaus Joachim Mueller-Engel | 2007-01-02 |
| 7019168 | Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid | Martin Dieterle, Jochen Petzoldt, Klaus Joachim Müller-Engel | 2006-03-28 |
| 7012157 | Preparation of (meth)acrylic acid | Frieder Borgmeier, Frank Rosowski, Klaus Joachim Müller-Engel | 2006-03-14 |
| 6458989 | Method for producing (meth)acrylic acid and (meth)acrylic acid esters | Heinrich Aichinger, Gerhard Nestler | 2002-10-01 |
| 6207022 | Purification of crude (meth) acrylic acid | Toni Dockner, Gerhard Nestler, Holger Herbst, Helmut Lermer, Herbert Vogel +1 more | 2001-03-27 |
| 5482597 | Purification of crude (meth)acrylic acid | Holger Herbst, Gerhard Nestler, Jerry Darlington | 1996-01-09 |
| 5449821 | Multimetal oxide compositions for gas-phase catalytic oxidation | Hans-Peter Neumann, Hermann Petersen, Walter Doerflinger | 1995-09-12 |
| 5364825 | Multimetal oxide compositions and process of preparing same | Hans-Peter Neumann, Hermann Petersen, Walter Doerflinger | 1994-11-15 |
| 5144091 | Preparation of acrolein or methacrolein by actalytic gas-phase oxidation of propene or isobutene | Ulrike Wegerle, Wilhelm Ruppel, Lothar Riekert, Dieter Becker, Michael Kotter | 1992-09-01 |
| 5017542 | Catalyst for the oxidation and ammonoxidation of .alpha.-, .beta.-unsaturated hydrocarbons | Wolf D. Mross, Gerd-Juergen Engert | 1991-05-21 |
| 4916103 | Preparation of a catalytically active composition for the gas phase oxidation of propylene to acrolein and acrylic acid | Matthias Schwarzmann, Karl-Heinz Boehning, Heinz Dreyer | 1990-04-10 |