Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8884064 | Method of separating off magnetizable catalyst particles by means of magnetic filters | Frank Kuhnke, Daniela Rieck | 2014-11-11 |
| 8476463 | Process for separating off fumaric acid and other minor components during the production of maleic anhydride | Gunther Windecker, Jens Weiguny, Alexander Weck, Ellen Dahlhoff, Wolf-Steffen Weiβker +2 more | 2013-07-02 |
| 8231792 | Purification of ionic liquids | Martin Fiene, Harald Rust, Klemens Massonne, Veit Stegmann, Oliver Huttenloch | 2012-07-31 |
| 7999120 | Process for continuously removing a target product X in the form of fine crystals | Peter Schlemmer, Ulrich Hammon, Klaus Joachim Müller-Engel | 2011-08-16 |
| 7705181 | Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component | Klaus Joachim Müller-Engel, Christoph Adami, Martin Dieterle | 2010-04-27 |
| 7612233 | Production of sodium diformate | Alexander Hauk, Stefan Gropp, Robert W. Lenz, Daniela Rieck, Gerhard Laux | 2009-11-03 |
| 7323016 | Regulation of a wash column in a melt crystallization process | Bernd Eck, Dieter Baumann | 2008-01-29 |
| 7112695 | Method for the purification of a crude acrylic acid melt | Bernd Eck, Dieter Baumann, Klaus Joachim Müller-Engel | 2006-09-26 |
| 6939991 | Preparation of acrylic acid | Joachim Thiel, Ulrich Hammon, Dieter Baumann, Jürgen Schröder, Klaus Joachim Müller-Engel | 2005-09-06 |
| 6921837 | Process for the purification and preparation of acrylic acid or methacrylic acid | Bernd Eck, Dieter Baumann, Volker Schliephake | 2005-07-26 |
| 6852881 | Purification method for (meth)acrylic acid | Emile De Decker, Erik Bastiaensen, Dieter Baumann, Bernd Eck | 2005-02-08 |
| 6703511 | Method for obtaining pure n-vinyl pyrrolidone | Bernd Eck, Martin Schmidt-Radde, Herbert Helfert | 2004-03-09 |
| 6700016 | Method of purifying and producing acrylic acid or methacrylic acid | Bernd Eck, Dieter Baumann, Volker Schliephake | 2004-03-02 |
| 6638619 | Method for producing a granulate from a melt | Melanie Brunner, Rudolf Erich Lorenz, Bernhard Maltry | 2003-10-28 |
| 6433222 | Method for producing acrylic acid | Bernd Eck, Volker Schliephake, Theo Proll, Klaus Bröllos, Otto Machhammer +1 more | 2002-08-13 |
| 6414190 | Purification of acrylic acid by crystallization by means of vacuum evaporation | Bernd Eck, Volker Schliephake | 2002-07-02 |
| 6051736 | Preparation of (meth)acrylic acid | Armin Schraut, Michael-Dieter Ulbrich, Freidrich-Georg Martin, Bernd Eck | 2000-04-18 |
| 6026656 | Crystallization by evaporation and vapor condensation | Bernd Eck | 2000-02-22 |
| 5814231 | Separation of liquid eutectic mixtures by crystallization on cold surfaces and apparatus for this purpose | Klaus Borho, Gunter Schnabel | 1998-09-29 |