Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12290768 | Device for carrying out material exchange processes | Bernd Metzen, Christian Kunkelmann, Marvin KRAMP, Claus Hechler | 2025-05-06 |
| 11498997 | Process for removal of volatile compounds from tackifiers | Miran Yu, Dieter Rodewald, Stephan Schlitter, Guenter Scherr, Felix Alexander Westerhaus | 2022-11-15 |
| 10941103 | Process for continuously preparing n-butyl acrylate or isobutyl acrylate | Tim Blaschke, Christian Raith, Michael Schafranka, Claus Hechler | 2021-03-09 |
| 10906862 | Process for isolating pure butyl acrylate from crude butyl acrylate by distillation, where butyl is n-butyl or isobutyl | Bernd Metzen, Claus Hechler | 2021-02-02 |
| 10894223 | Process for isolating pure 2-ethylhexyl acrylate or pure 2-propylheptyl acrylate from the corresponding crude alkyl acrylate by distillation | Bernd Metzen, Claus Hechler | 2021-01-19 |
| 10730823 | Process for isolating pure tert-butyl (meth)acrylate from crude tert-butyl (meth)acrylate by distillation | Bernd Metzen, Claus Hechler | 2020-08-04 |
| 10569192 | Distillation device comprising a column which as three or a plurality of cells in series through which fluid flows and method for distilling or extractive distillation by use of the distillation device | Norbert Asprion, Bernd Heida, Jan-Oliver Weidert | 2020-02-25 |
| 10252970 | Method of dehydrating 3-hydroxypropionic acid to form acrylic acid | Tim Blaschke, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer | 2019-04-09 |
| 9809526 | Method for the continuous dehydration of 3-hydroxypropionic acid to form acrylic acid | Tim Blaschke, Marta Zajaczkowski-Fischer, Marco Hartmann | 2017-11-07 |
| 9630900 | Method for the dehydration of 3-hydroxypropanoic acid to form acrylic acid | Tim Blaschke, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer | 2017-04-25 |
| 9388118 | Continuous process for preparing (meth)acrylates of C10-alcohol mixtures | Ulrich Jaeger, Volker Schliephake, Jochen Petzoldt, Tobias Johannes Korn, Virginie Bette +1 more | 2016-07-12 |
| 9260402 | Process for the preparation of 5-hydroxymethylfurfural (HMF) | Benoit Blank, Alois Kindler, Peter Bassler, Markus Piepenbrink, Carmen Feldner | 2016-02-16 |
| 7959766 | Method for obtaining cyclododecatriene by evaporation | Bernd Rumpf, Andrea Haunert, Thomas Genger, Anton Meier | 2011-06-14 |
| 7872131 | Method for producing a solution of pure triethylenediamine (TEDA) | Matthias Frauenkron | 2011-01-18 |
| 7345173 | Work-up of the mother liquor obtained in the preparation of high-purity triethylenediamine | Bernd Rumpf, Matthias Frauenkron, Dirk Funhoff, Thomas Manderbach, Bernd Stein | 2008-03-18 |
| 7342139 | Method for producing highly concentrated formaldehyde solution | Bernd Rumpf, Eckhard Ströfer, Neven Lang | 2008-03-11 |
| 7271292 | Process for distillatively removing piperazine from an ethylenediamine-piperazine mixture | Michael Jödecke, Gunther van Cauwenberge, Matthias Frauenkron | 2007-09-18 |
| 7151177 | Process for the preparation of highly pure triethylene diamine | Bernd Rumpf, Matthias Frauenkron, Thomas Manderbach, Bernd Stein | 2006-12-19 |
| 7132538 | Isolation of high-purity triethylenediamine (TEDA) by distillation | Bernd Rumpf, Matthias Frauenkron, Marco Bosch, Helmut Berrsche, Anton Meier | 2006-11-07 |
| 6958397 | Method of selectively synthesizing triethylenediamine | Matthias Frauenkron, Bernd Stein | 2005-10-25 |
| 6627756 | Preparation of pure triethylenediamine | Hartmut Riechers, Arthur Hohn, Joachim Simon, Hartmut Schoenmakers, Matthias Rauls +1 more | 2003-09-30 |
| 6552194 | Process for the preparation of pure triethylenediamine (TEDA) | Bernd Rumpf, Matthias Frauenkron, Dirk Funhoff, Thomas Manderbach, Bernd Stein | 2003-04-22 |