Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8933277 | Process for preparing polymethylols | Stephan Schlitter, Michael Steiniger, Stefan Rittinger, Steffen Maas | 2015-01-13 |
| 8884076 | Method for preparing polymethylols | Michael Steiniger, Steffen Maas, Stefan Rittinger, Stephan Schlitter | 2014-11-11 |
| 8759594 | Method for producing 1,6-hexanediol by hydrogenation of oligo- and polyesters | Olivier Abillard, Rolf Pinkos, Gerd-Dieter Tebben, Daniel Urbanczyk, Heiko Urtel +1 more | 2014-06-24 |
| 8575401 | Method for purifying crude polymethylols | Michael Steiniger, Steffen Maas, Stefan Rittinger | 2013-11-05 |
| 8247580 | Process for preparing ε-caprolactone | Rolf Pinkos, Gerd-Dieter Tebben, Thomas Krug, Todd C. Spengeman, Stephanie A. Bejune +2 more | 2012-08-21 |
| 8217186 | Process for preparing epsilon-caprolactone | Rolf Pinkos, Gerd-Dieter Tebben, Daniel Breuninger, Christophe Bauduin, Maria Guixa Guardia +1 more | 2012-07-10 |
| 8183411 | Process for preparing 6-hydroxycaproic esters | Rolf Pinkos, Gerd-Dieter Tebben, Rolf Fischer | 2012-05-22 |
| 7767865 | Method for producing hydroxypivalaldehyde and neopentyl glycol | Michael Steiniger, Steffen Maas, Stefan Rittinger, Stephan Schlitter | 2010-08-03 |
| 7449609 | Method for production of 1,6-hexanediol with a purity in excess of 99.5% | Andrea Haunert, Rolf Pinkos, Thomas Krug, Michael Koch, Gerd-Dieter Tebben | 2008-11-11 |
| 7388116 | Hydrogenation of methylolalkanals | Steffen Maas, Thorsten Johann, Michael Koch, Stephan Schlitter, Stefan Rittinger +2 more | 2008-06-17 |
| 7307194 | Method for producing 1, 6 hexane diol | Gerd-Dieter Tebben, Ludwig E. Heck, Armin Diefenbacher, Alfred Krause, Franz Borgel | 2007-12-11 |
| 7301058 | Method for increasing yield in the production of polyvalent alcohols by splitting by-products containing acetal | Alexander Wartini, Johann-Peter Melder, Matthias Dernbach | 2007-11-27 |
| 7241914 | Method for producing polyesterpolyols of polyvalent alcohols | Alexander Wartini, Matthias Dernbach, Gerlinde Tischer | 2007-07-10 |
| 7112707 | Method for the isolation of trimethylolpropane from a reaction mixture | Gerd Kaibel, Alexander Wartini, Matthias Dernbach | 2006-09-26 |
| 7064239 | Preparation of 1,6-hexanediol | Rolf Fischer, Thomas Krug, Andrea Haunert, Michael Roper, Wolfram Stuer | 2006-06-20 |
| 6914164 | Method for the decomposition of ammonium formates in reaction mixtures containing polyol | Michael Koch, Alexander Wartini, Matthias Dernbach | 2005-07-05 |
| 6500371 | Continuous method for producing amino- and/or phenoplasts | Heinz Berbner, Hans Etling, Erhard Guenther, Hans D. Zettler | 2002-12-31 |