Issued Patents All Time
Showing 25 most recent of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8153825 | Preparation of phthalic anhydride by gas phase oxidation of o-xylene | Thomas Mackewitz, Frank Rosowski | 2012-04-10 |
| 8106220 | Preparation of phthalic anhydride by gas phase oxidation of O-xylene in a main reactor and postreactor | Thomas Mackewitz, Frank Rosowski | 2012-01-31 |
| 7214822 | Catalyst comprising a support and a catalytically active oxide material applied to the surface of the substrate | Frieder Borgmeier, Hartmut Hibst | 2007-05-08 |
| 7151184 | Preparation of phthalic anhydride | Sebastian Storck, Frank Rosowski, Michael Baier, Hans-Josef Wolf | 2006-12-19 |
| 7026506 | Method for producing acrylic acid by heterogeneously catalyzed gas-phase oxidation of propene with molecular oxygen in a reaction zone | Frieder Borgmeier, Jochen Petzoldt, Hartmut Hibst | 2006-04-11 |
| 7005403 | Catalyst comprising a support body and a catalytically active oxide material applied to the surface of the substrate | Frieder Borgmeier, Hartmut Hibst | 2006-02-28 |
| 6998504 | Method for the catalytic gas phase oxidation of propene into acrylic acid | Signe Unverricht, Heiko Arnold, Ulrich Hammon, Hans-Peter Neumann, Klaus Harth | 2006-02-14 |
| 6870014 | Catalyst and method for producing polytetrahydrofurane | Ulrich Steinbrenner, Thomas Narbeshuber, Martin Haubner, Christoph Sigwart, Gerd Linden +6 more | 2005-03-22 |
| 6867328 | Method for producing acrylic acid by the heterogeneously catalysed gas-phase oxidation of propane | Frieder Borgmeier, Hartmut Hibst, Klaus Joachim Müller-Engel, Signe Unverricht, Gerhard Cox | 2005-03-15 |
| 6812351 | Hollow cylindrical catalyst and a method for producing a maleic acid anhydride | Jens Weiguny, Sebastian Storck | 2004-11-02 |
| 6803473 | Method for producing maleic acid anhydride | Jens Weiguny, Sebastian Storck, Wilhelm Ruppel | 2004-10-12 |
| 6781017 | Method for the production of acrolein or acrylic acid or the mixture thereof from propane | Otto Machhammer, Goetz-Peter Schindler, Klaus Harth, Peter Zehner, Klaus Joachim Müller-Engel +2 more | 2004-08-24 |
| 6740779 | Method for carrying out the catalytic gas phase oxidation of propene to form acrylic acid | Hartmut Hibst, Otto Machhammer, Claus Hechler, Klaus Joachim Müller-Engel, Signe Unverricht | 2004-05-25 |
| 6730808 | Oxidative reactions using membranes that selectively conduct oxygen | Stefan Bitterlich, Hartwig Voss, Hartmut Hibst, Ingolf Voigt, Ute Pippardt | 2004-05-04 |
| 6541664 | Method of heterogeneous catalyzed vapor-phase oxidation of propane to acrolein and/or acrylic acid | Harald Jachow, Signe Unverricht, Heiko Arnold | 2003-04-01 |
| 6525217 | Method for the catalytic gas-phase oxidation of propene to acrylic acid | Signe Unverricht, Heiko Arnold, Ulrich Hammon, Hans-Peter Neumann, Klaus Harth | 2003-02-25 |
| 6426433 | Method for producing acrolein and/or acrylic acid from propane | Otto Machhammer, Harald Jachow, Susanne Haupt, Heiko Arnold, Signe Unverricht | 2002-07-30 |
| 6423875 | Method for producing acrolein and/or acrylic acid from propane | Otto Machhammer, Harald Jachow, Susanne Haupt, Heiko Arnold, Signe Unverricht | 2002-07-23 |
| 6403829 | Method for the catalytic gas phase oxidation of acrolein into acrylic acid | Signe Unverricht, Heiko Arnold, Ulrich Hammon | 2002-06-11 |
| 6395936 | Method for the catalytic gas phase oxidation of propene into acrolein | Heiko Arnold, Signe Unverricht, Ulrich Hammon, Hans-Peter Neumann, Klaus Harth | 2002-05-28 |
| 6388129 | Method for producing acrolein and/or acrylic acid from propane | Otto Machhammer, Harald Jachow, Susanne Haupt, Heiko Arnold, Signe Unverricht | 2002-05-14 |
| 6252122 | Industrial process for the heterogeneously catalytic gas-phase oxidation of propane to form acrolein | Theo Proll, Hans-Peter Schildberg | 2001-06-26 |
| 6184173 | Multimetal oxides | Hartmut Hibst, Laszlo Marosi | 2001-02-06 |
| 6169214 | Catalyst consisting of a hollow cylindrical carrier having a catalytically active oxide material applied to the outer surface of the carrier, and process for using said catalyst | Peter Weidlich, Gerd Linden | 2001-01-02 |
| 6124499 | Preparation of organic acids such as acrylic acid by catalytic oxidation using a group V mixed metal oxide catalyst containing Cu, Mo, W, V, Nb and Ta | Hartmut Hibst, Laszlo Marosi | 2000-09-26 |