Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10710054 | Multi-zoned catalyst system for oxidation of o-xylene and/or naphthalene to phthalic anhydride | Diana Carolina Galeano Nunez, Christian Walsdorff, Hans-Martin Allmann | 2020-07-14 |
| 10307741 | Shaped catalyst body for the catalytic oxidation of SO2 into SO3 | Philipp GRÜNE, Christian Walsdorff, Markus Schubert, Holger Borchert, Jacob Cornelis Van Dorland +2 more | 2019-06-04 |
| 9914716 | Catalyst system for oxidation of o-xylene and/or naphthalene to phthalic anhydride | Diana Carolina Galeano Nunez, Christian Walsdorff, Hans-Martin Allmann | 2018-03-13 |
| 9868713 | Catalyst system for oxidizing o-xylol and/or naphthalene into phthalic anhydride | Nico Fischer, Diana Carolina Galeano Nunez, Michael Kramer, Markus Schubert, Hans-Martin Allmann | 2018-01-16 |
| 9765046 | Process for preparing phthalic anhydride | Nico Fischer, Michael Kramer, Hans-Martin Allmann | 2017-09-19 |
| 9714227 | Catalyst for the epoxidation of alkenes | Joseph John Zakzeski, Marco Bosch, Cornelia Katharina Dobner, Christian Bartosch | 2017-07-25 |
| 9656983 | Process for starting up a gas phase oxidation reactor | Michael Kramer, Nico Fischer, Hans-Martin Allmann | 2017-05-23 |
| 9212157 | Catalyst for the oxidation of o-xylene and/or naphthalene to phthalic anhydride | Stefan Altwasser, Frank Rosowski, Michael Kramer | 2015-12-15 |
| 9067187 | Catalyst system and method for gas phase oxidation using an upstream layer | Hagen Wilmer, Thomas Lautensack, Hans-Martin Allmann, Frank Rosowski, Cornelia Katharina Dobner | 2015-06-30 |
| 9029289 | Catalyst for preparing carboxylic acids and/or carboxylic anhydrides | Michael Kramer, Stefan Altwasser, Nico Fischer, Frank Rosowski, Hans-Martin Allmann | 2015-05-12 |
| 8901320 | Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride | Stefan Altwasser, Hao Chen, Cornelia Katharina Dobner, Frank Rosowski | 2014-12-02 |
| 8859459 | Multilayer catalyst for preparing phthalic anhydride and process for preparing phthalic anhydride | Stefan Altwasser, Hans-Martin Allmann, Frank Rosowski | 2014-10-14 |
| 8492566 | Method for starting a gas-phase oxidation reactor | Hagen Wilmer, Thomas Lautensack, Hans-Martin Allmann, Frank Rosowski, Cornelia Katharina Dobner | 2013-07-23 |
| 8323610 | Catalyst for the oxidation of SO2 to SO3 | Michael Kramer, Markus Schubert, Thomas Lautensack, Thomas Hill, Reinhard Korner +1 more | 2012-12-04 |
| 8263789 | Catalyst system and method for gas phase oxidation using an upstream layer | Hagen Wilmer, Thomas Lautensack, Hans-Martin Allmann, Frank Rosowski, Cornelia Katharina Dobner | 2012-09-11 |
| 7985705 | Three-layered, four-layered, or five-layered catalyst systems for producing phthalic anhydride | Sebastian Storck, Samuel Neto, Frank Rosowski | 2011-07-26 |
| 7851398 | Catalytic titanium dioxide mixtures, catalysts and catalyst systems containing the same, processes for making the same, and uses therefor | Samuel Neto, Sebastian Storck, Frank Rosowski | 2010-12-14 |
| 7687425 | Three-layered or four-layered catalyst systems for producing phthalic anhydride | Sebastian Storck, Samuel Neto, Frank Rosowski | 2010-03-30 |
| 7592294 | Gas phase oxidation catalyst with defined vanadium oxide particle size distribution | Sebastian Storck, Samuel Neto, Frank Rosowski, Wolfgang Rummel | 2009-09-22 |
| 7390911 | Method for producing phthalic anhydride | Samuel Neto, Sebastian Storck, Frank Rosowski | 2008-06-24 |
| 7371893 | Production of aldehydes, carboxylic acids and/or carboxylic acid anhydrides by means of catalysts containing vanadium oxide, titanium dioxide, and antimony oxide | Sebastian Storck, Samuel Neto, Frank Rosowski | 2008-05-13 |