Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE45240 | Process for preparing pure triethanolamine (TEOA) | Johann-Peter Melder, Tom Fremau, Jürgen Moors, Thilo Hahn, Bernd Stein | 2014-11-11 |
| 8466323 | Process for preparing pure triethanolamine (TEOA) | Johann-Peter Melder, Tom Fremau, Jürgen Moors, Thilo Hahn, Bernd Stein | 2013-06-18 |
| 7758730 | Method for improving a piperazine colour stability | Holger Evers, Michael Jödecke, Johann-Peter Melder, Jan Nouwen | 2010-07-20 |
| 7696384 | Process for producing ethyleneamines | Johann-Peter Melder, Holger Evers, Till Gerlach, Frank Kiesslich, Ekkehard Schwab +1 more | 2010-04-13 |