Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10208149 | Method for producing water-absorbent polymer particles with a higher permeability by polymerising droplets of a monomer solution | Uwe Stueven, Matthias Weismantel, Marco Krüger, Volker Seidl, Stefan Blei +3 more | 2019-02-19 |
| 9029485 | Method for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution | Marco Krüger, Stefan Blei, Matthias Weismantel, Uwe Stueven | 2015-05-12 |
| 8835575 | Method for the production of water-absorbing polymer particles | Claus Hechler, Marc Gerardus Nicolas Grimmon, Filip Mees, Karl J. Possemiers | 2014-09-16 |
| 8748000 | Method for producing water-absorbent polymer particles with a higher permeability by polymerizing droplets of a monomer solution | Uwe Stueven, Matthias Weismantel, Marco Krüger, Volker Seidl, Stefan Blei +3 more | 2014-06-10 |
| 8748512 | Method for producing polymer particles by the polymerization of liquid droplets in a gas phase | Dennis Lösch, Annemarie Hillebrecht, Marco Krüger, Stefan Blei, Matthias Weismantel | 2014-06-10 |
| 8697779 | Method for producing water-absorbent polymer particles by the polymerization of droplets of a monomer solution | Dennis Lösch, Marco Krüger, Stefan Blei, Matthias Weismantel | 2014-04-15 |
| 8546498 | Method for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution | Marco Krüger, Stefan Blei, Matthias Weismantel, Uwe Stueven | 2013-10-01 |
| 8541528 | Process for producing water-absorbing particles | Rüdiger Funk, Thomas Pfeiffer, Matthias Weismantel, Stefan Blei, Volker Braig +2 more | 2013-09-24 |
| 8536278 | Method for the surface post-crosslinking of water absorbing polymer particles | Rüdiger Funk, Uwe Stueven | 2013-09-17 |
| 8419971 | Method for producing mechanically stable water-absorbent polymer particles | Uwe Stueven, Rüdiger Funk, Matthias Weismantel, Marco Krüger | 2013-04-16 |
| 8389658 | Method for producing post-cured water-absorbent polymer particles with a higher absorption by polymerizing droplets of a monomer solution | Uwe Stueven, Matthias Weismantel, Marco Krüger, Volker Seidl, Stefan Blei +3 more | 2013-03-05 |
| 8342033 | Method for avoiding overloading of a shaft | Huanmin Wei, Annemarie Hillebrecht, Oskar Stephan, Asif Karim | 2013-01-01 |
| 8202957 | Method for producing post-cured water-absorbent polymer particles with a higher absorption by polymerising droplets of a monomer solution | Uwe Stueven, Matthias Weismantel, Marco Krüger, Volker Seidl, Stefan Blei +3 more | 2012-06-19 |
| 8188193 | Method for post-crosslinking of the surface of water-absorbing polymer particles | Stefan Blei, Marco Krüger, Matthias Weismantel, Uwe Stueven | 2012-05-29 |
| 8183331 | Regulation of a process for producing water-absorbing polymer particles in a heated gas phase | Dennis Lösch, Marco Krüger, Matthias Weismantel | 2012-05-22 |
| 8124229 | Method for producing water-absorbent polymer particles with a higher permeability by polymerising droplets of a monomer solution | Uwe Stueven, Matthias Weismantel, Marco Krüger, Volker Seidl, Stefan Blei +3 more | 2012-02-28 |
| 8044158 | Method for the production of water-absorbing polymer articles by polymerizing drops of a monomer solution | Dennis Lösch, Marco Krüger, Uwe Stueven, Matthias Weismantel, Stefan Blei | 2011-10-25 |
| 7951304 | Method for producing mechanically stable water-absorbent polymer particles | Uwe Stueven, Rüdiger Funk, Matthias Weismantel, Marco Krüger | 2011-05-31 |
| 7727586 | Production of water-absorbing polymeric particles by dropletization polymerization in the gas phase | Stefan Bruhns, Volker Frenz, Dennis Lösch, Volker Seidl, Uwe Stueven +3 more | 2010-06-01 |
| 7393908 | Cross-linked, water-swellable polymer and method for producing the same | Stefan Wickel, Thomas Daniel, Uwe Stuven | 2008-07-01 |
| 6710141 | Method for continuously producing cross-linked fine-particle geleous polymerizates | Stefan Wickel, Thomas Daniel, Joachim Nilges, Jurgen Hofmann | 2004-03-23 |
| 6414214 | Mechanically stable hydrogel-forming polymers | Friedrich Engelhardt, Volker Frenz, Norbert Herfert, Ulrich Riegel, Matthias Weismantel | 2002-07-02 |
| 5795926 | Preparation of finely divided polymer powders | Manfred Niessner, Norbert Grund, Heinrich Hartmann | 1998-08-18 |
| 5149750 | Preparation of finely divided, gel-like, water-swellable copolymers | Manfred Niessner, Stefan Wickel, Heinrich Hartmann | 1992-09-22 |
| 4879361 | Preparation of bead polymers from water-soluble, ethylenically unsaturated monomers | Gerd Rehmer, Manfred Niessner, Heinrich Hartmann, Karl-Clemens Peters | 1989-11-07 |