Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8372993 | Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification | Neven Lang, Eckhard Stroefer, Julia Kirschbaum, Markus Siegert | 2013-02-12 |
| 7520964 | Method for the rectifying separation of fluids containing (meth)acryl monomers | Ulrich Hammon, Volker Schliephake, Juergen Schroeder | 2009-04-21 |
| 7393436 | Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers | Bernd Eck, Ulrich Hammon, Klaus Joachim Mueller-Engel, Juergen Schroeder, Hans Martan | 2008-07-01 |
| 7351310 | Rectificative separation of fluids comprising (meth) acrylic monomers | Albrecht Dams, Juergen Schroeder | 2008-04-01 |
| 7306204 | Column comprising dual flow plates | Juergen Schroeder | 2007-12-11 |
| 7287534 | Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated | Volker Diehl, Ulrich Jager, Jürgen Schröder | 2007-10-30 |
| 7279075 | Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers | Hugues Vandenmersch, Juergen Schroeder, Albrecht Dams | 2007-10-09 |
| 7118098 | Hydraulically sealed crossflow mass transfer tray | Ulrich Hammon, Bernd Gerber, Helmut Jansen, Björn Kaibel | 2006-10-10 |
| 7109374 | Method for the continuous extraction of (meth)acrylic acid | Otto Machhammer, Christoph Adami, Claus Hechler, Juergen Schroeder, Volker Schliephake +1 more | 2006-09-19 |
| 7029557 | Method for producing an aqueous hydroxylamine solution devoid of salt | Karl-Heinz Wostbrock, Heinz Krüger, Eckhard Ströfer, Markus Weber, Bernd Gerber +3 more | 2006-04-18 |
| 6942762 | Method for the production of a salt-free aqueous hydroxylamine solution | Karl-Heinz Wostbrock, Heinz Krüger, Eckhard Ströfer, Markus Weber, Bernd Gerber +3 more | 2005-09-13 |
| 6939991 | Preparation of acrylic acid | Ulrich Hammon, Dieter Baumann, Jorg Heilek, Jürgen Schröder, Klaus Joachim Müller-Engel | 2005-09-06 |
| 6921833 | Method for the continuous production of methyl formate | Heinz Auer, Jurgen Dahlhaus, Karl Fischer, Hans Hammer, Jochen Kellenbenz +2 more | 2005-07-26 |
| 6679939 | Fractional condensation of a product gas mixture containing acrylic acid | Jürgen Schröder, Gerhard Nestler | 2004-01-20 |
| 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, Volker Schliephake, Klaus Bröllos | 2003-11-11 |
| 6541665 | Method for purifying acrylic acid or methacrylic acid by crystallization and distillation | Erik Bastiaensen, Bernd Eck | 2003-04-01 |
| 6469428 | Lamp with a mechanical base | Ernst Muehlich, Dieter Trypke | 2002-10-22 |
| 6448439 | Method for producing acrylic acid and methacrylic acid | Bernd Eck, Otto Machhammer, Theo Proll, Volker Schliephake, Klaus Bröllos | 2002-09-10 |
| 6433222 | Method for producing acrylic acid | Bernd Eck, Jorg Heilek, Volker Schliephake, Theo Proll, Klaus Bröllos +1 more | 2002-08-13 |