Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11755591 | Metadata object identifier registry | Jan Portisch, Sandra Bracholdt, Volker Saggau | 2023-09-12 |
| 6720447 | Method for the production of esters | Klaus Ditrich | 2004-04-13 |
| 4675420 | Generation of reduced pressure in apparatuses in the preparation of phthalic anhydride and maleic anhydride | Wolf Muff, Klaus Nixdorf, Joachim Wagner | 1987-06-23 |
| 4662898 | Increasing the temperature of the exit gas from the exit gas washer in the preparation of phthalic anhydride | — | 1987-05-05 |
| 4326073 | Production of anhydrous or substantially anhydrous formic acid | Dieter Wolf, Rudolf Schmidt, Hartmut Schoenmakers, Kaspar Bott, Gerd Kaibel | 1982-04-20 |