Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7915363 | Acidic superabsorbent hydrogels | Rüdiger Funk, Mariola Wanior, Uwe Stuven, Martin H. Beck | 2011-03-29 |
| 7790823 | Acidic superabsorbent hydrogels | Rüdiger Funk, Mariola Wanior, Uwe Stuven, Martin H. Beck | 2010-09-07 |
| 7662460 | Plasticized superabsorbent polymer sheets and use thereof in hygienic articles | Michael A. Mitchell, Friedrich Engelhardt | 2010-02-16 |
| 7528291 | Color-stable superabsorbent polymer composition | Michael M. Azad, Peter W. Carrico | 2009-05-05 |
| 7504551 | Color-stable superabsorbent polymer composition | Michael M. Azad, Peter W. Carrico, Guy Thomas Woodrum, Michael A. Mitchell, Ma-Ikay Miatudila | 2009-03-17 |
| 7396584 | Crosslinked polyamine coating on superabsorbent hydrogels | Michael M. Azad, Michael A. Mitchell, Jim Robinson | 2008-07-08 |
| 7329701 | Superabsorbent polymers and method of manufacturing the same | Michael M. Azad, Michael A. Mitchell, Guy Thomas Woodrum, William Chiang, Patricia Brown +1 more | 2008-02-12 |
| 7144957 | Polymer mixture of hydrogels with different pH value | Rüdiger Funk, Mariola Wanior | 2006-12-05 |
| 6849665 | Absorbent compositions | Volker Frenz, Ulrich Riegel, William E. Volz, Thomas H. Majette, James Hill | 2005-02-01 |
| 6828354 | Hydrophilic open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene products | Hans-Joachim Hähnle, Horst Baumgartl | 2004-12-07 |
| 6800666 | Hydrophilic, open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene products | Hans-Joachim Hähnle, Horst Baumgartl, Martin H. Beck, Bernhard Mohr, Jürgen Huff | 2004-10-05 |
| 6641064 | Complete drying method for hydrogels | Joachim Dentler, Helmut Klotzsche, Rudolf Schliwa, Uwe Stuven | 2003-11-04 |
| 6602950 | Hydrophilic hydrogels with a high swelling capacity and method for producing and using them | Joachim Dentler, Rüdiger Funk, Mariola Wanior, Friedrich Engelhardt | 2003-08-05 |
| 6565768 | Method for producing water-swellable hydorphilic polymers, said polymers and use thereof | Joachim Dentler, Rudolf Schliwa, Uwe Stuven, Fritz Engelhardt | 2003-05-20 |
| 6414214 | Mechanically stable hydrogel-forming polymers | Friedrich Engelhardt, Volker Frenz, Ulrich Riegel, Matthias Weismantel, Wilfried Heide | 2002-07-02 |
| 6297335 | Crosslinked, hydrophilic, highly swellable hydrogels, production thereof and use thereof | Rüdiger Funk, Mariola Wanior, Patricia Brown, Fritz Engelhardt, Guy Thomas Woodrum | 2001-10-02 |
| 6107432 | Water-swellable, hydrophilic polymer compositions | Fritz Engelhardt, Rüdiger Funk, Matthias Weismantel | 2000-08-22 |
| 5973014 | Process for the preparation of porous, hydrophilic, highly swellable hydrogels | Rüdiger Funk, Ulrich Riegel | 1999-10-26 |
| 5945495 | Use of surfactants in the drying of hydrophilic highly swellable hydrogels | Thomas Daniel, Gustav Remmel, Ulrich Riegel, Uwe Stuven, Fritz Engelhardt | 1999-08-31 |
| 5840321 | Hydrophilic, highly swellable hydrogels | Fritz Engelhardt, Uwe Stuven, Thomas Daniel | 1998-11-24 |
| 5731365 | Hydrophilic, highly swellable hydrogels | Fritz Engelhardt, Uwe Stuven, Ulrich Riegel, Rüdiger Funk, Detlev Seip | 1998-03-24 |