Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8765634 | Processes for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein | Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Till Gerlach | 2014-07-01 |
| 8759580 | Method for the production of aminoalkane acid amides | Martin Ernst, Andreas Kusche, Gunnar Heydrich, Horst Grafmans, Johann-Peter Melder +2 more | 2014-06-24 |
| 8063252 | Process for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein | Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Till Gerlach | 2011-11-22 |
| 7919655 | Method for producing an amine | Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Till Gerlach | 2011-04-05 |
| 7758730 | Method for improving a piperazine colour stability | Michael Jödecke, Johann-Peter Melder, Gunther Van Cauwenberge, Jan Nouwen | 2010-07-20 |
| 7754922 | Process for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein | Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Till Gerlach | 2010-07-13 |
| 7696384 | Process for producing ethyleneamines | Gunther Van Cauwenberge, Johann-Peter Melder, Till Gerlach, Frank Kiesslich, Ekkehard Schwab +1 more | 2010-04-13 |
| 7674929 | Method for the production of β-aminopropionic acid derivatives | Johann-Peter Melder, Thomas Preiss, Harald Meissner | 2010-03-09 |
| 7615665 | Method for producing ethylene amines | Till Gerlach, Johann-Peter Melder | 2009-11-10 |
| 7601875 | Method for producing ethyleneamines | Matthias Frauenkron, Johann-Peter Melder, Roderich Röttger, Markus Siegert, Till Gerlack +2 more | 2009-10-13 |
| 7393978 | Method for producing ethylene-amines | Matthias Frauenkron, Thomas Krug, Johann-Peter Melder, Roderich Röttger, Markus Siegert +4 more | 2008-07-01 |