Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7439406 | Method for hydrogenating methylol alkanals | Matthias Dernbach, Steffen Maas | 2008-10-21 |
| 7301058 | Method for increasing yield in the production of polyvalent alcohols by splitting by-products containing acetal | Tilman Sirch, Johann-Peter Melder, Matthias Dernbach | 2007-11-27 |
| 7247753 | Method for producing macrocyclic ketones by means of dieckmann codensation in the gas phase | Klaus Ebel, Gisela HIEBER, Hagen Weigl | 2007-07-24 |
| 7241914 | Method for producing polyesterpolyols of polyvalent alcohols | Matthias Dernbach, Gerlinde Tischer, Tilman Sirch | 2007-07-10 |
| 7112707 | Method for the isolation of trimethylolpropane from a reaction mixture | Tilman Sirch, Gerd Kaibel, Matthias Dernbach | 2006-09-26 |
| 6914164 | Method for the decomposition of ammonium formates in reaction mixtures containing polyol | Michael Koch, Tilman Sirch, Matthias Dernbach | 2005-07-05 |