Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921837 | Process for the purification and preparation of acrylic acid or methacrylic acid | Bernd Eck, Jorg Heilek, Dieter Baumann | 2005-07-26 |
| 6726854 | Inhibitor composition for stabilizing substances capable of free radical polymerization | Heinz Friedrich Sutoris, Gerhard Wagenblast, Jürgen Schröder, Harald Keller, Thomas Jaworek | 2004-04-27 |
| 6700016 | Method of purifying and producing acrylic acid or methacrylic acid | Bernd Eck, Jorg Heilek, Dieter Baumann | 2004-03-02 |
| 6657088 | Temperature measurements in tubular reactors during treatment of fluid masses | Ulrich Hammon, Ulrich Rauh, Armin Schraut | 2003-12-02 |
| 6646161 | Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents | Bernd Eck, Otto Machhammer, Theo Proll, Joachim Thiel, Klaus Bröllos | 2003-11-11 |
| 6596901 | Method for purifying acrylic acid and methacrylic acid | Bernd Eck, Otto Machhammer, Theo Proll, Klaus Joachim Müller-Engel | 2003-07-22 |
| 6518453 | Method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization | Heinz Friedrich Sutoris, Gerhard Wagenblast, Jürgen Schröder, Klaus Joachim Müller-Engel, Harald Keller +1 more | 2003-02-11 |
| 6461440 | Apparatus having a metallic surface protected from undesired deposition of polymer | Heinz Friedrich Sutoris, Gerhard Wagenblast, Jürgen Schröder, Harald Keller, Rainer Rahm +2 more | 2002-10-08 |
| 6458956 | Inhibitor composition for stabilizing substances capable of free radical polymerization | Heinz Friedrich Sutoris, Gerhard Wagenblast, Jürgen Schröder, Harald Keller, Thomas Jaworek | 2002-10-01 |
| 6448439 | Method for producing acrylic acid and methacrylic acid | Bernd Eck, Otto Machhammer, Theo Proll, Joachim Thiel, Klaus Bröllos | 2002-09-10 |
| 6433222 | Method for producing acrylic acid | Bernd Eck, Jorg Heilek, 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, Jorg Heilek | 2002-07-02 |
| 6413379 | Continuous recovery of (meth)acrylic acid | Otto Machhammer, Susanne Haupt, Jürgen Schröder | 2002-07-02 |
| 6348638 | Method for removing by-products obtained when producing acrylic acid or methacrylic acids | Ulrich Hammon, Wolfgang Pies, Ulrich Rauh | 2002-02-19 |
| 6333011 | Apparatus for measuring temperatures in tubular reactors | Ulrich Hammon, Ulrich Rauh, Armin Schraut | 2001-12-25 |
| 5728272 | Separation by rectification of unsaturated carboxylic acids from solvents | Ulrich Hammon, Wolfgang Pies, Ulrich Rauh | 1998-03-17 |