Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8476463 | Process for separating off fumaric acid and other minor components during the production of maleic anhydride | Gunther Windecker, Alexander Weck, Ellen Dahlhoff, Wolf-Steffen Weiβker, Jorg Heilek +2 more | 2013-07-02 |
| 8461356 | Process for obtaining maleic anhydride by distillation | Gunther Windecker, Gerd Kaibel, Michael Steiniger, Thilo Buntrock, Dany Vanden Hautte +1 more | 2013-06-11 |
| 7169732 | Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof | Sebastian Storck, Mark Duda, Cornelia Katharina Dobner | 2007-01-30 |
| 7157403 | Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof | Sebastian Storck, Mark Duda, Cornelia Katharina Dobner | 2007-01-02 |
| 7087767 | Method for producing maleic anhydride | Wilhelm Ruppel, Mark Duda | 2006-08-08 |
| 7060649 | Method for the production of a catalyst containing vanadium, phosphorus, and oxygen | Sebastian Storck, Mark Duda, Cornelia Katharina Dobner, Raimund Felder | 2006-06-13 |
| 6812351 | Hollow cylindrical catalyst and a method for producing a maleic acid anhydride | Sebastian Storck, Andreas Tenten | 2004-11-02 |
| 6803473 | Method for producing maleic acid anhydride | Sebastian Storck, Andreas Tenten, Wilhelm Ruppel | 2004-10-12 |
| 6034270 | Process for the selective preparation of acetic acid using a molybdenum, palladium, and rhenium catalyst | Holger Borchert, Uwe Dingerdissen | 2000-03-07 |
| 5789593 | Process for preparing indenes | Holger Borchert, Uwe Dingerdissen | 1998-08-04 |
| 5719284 | Process for the preparation of substituted 3-arylquinazoline-2,4-diones | Holger Borchert, Thomas Gerdau | 1998-02-17 |
| 5648551 | Process for the preparation of halobenzaldehydes | Holger Borchert, Thomas Gerdau | 1997-07-15 |
| 5585523 | Process for the preparation of aldehydes by catalytic gas phase hydrogenation of carboxylic acid or their derivatives with the aid of a tin catalyst | Holger Borchert, Thomas Gerdau | 1996-12-17 |