Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8017549 | Superabsorbents having superior permeability and conveying properties | Norbert Herfert, Martin Wendker, Hermann Josef Feise, Hanno Rüdiger Wolf, Bill Chiang | 2011-09-13 |
| 7504551 | Color-stable superabsorbent polymer composition | Norbert Herfert, Michael M. Azad, Peter W. Carrico, Michael A. Mitchell, Ma-Ikay Miatudila | 2009-03-17 |
| 7329701 | Superabsorbent polymers and method of manufacturing the same | Norbert Herfert, Michael M. Azad, Michael A. Mitchell, William Chiang, Patricia Brown +1 more | 2008-02-12 |
| 6297335 | Crosslinked, hydrophilic, highly swellable hydrogels, production thereof and use thereof | Rüdiger Funk, Norbert Herfert, Mariola Wanior, Patricia Brown, Fritz Engelhardt | 2001-10-02 |
| 5597873 | Superabsorbent polymers and products therefrom | Douglas R. Chambers, William Chiang | 1997-01-28 |
| 5350799 | Process for the conversion of fine superabsorbent polymer particles into larger particles | Thomas H. Majette | 1994-09-27 |
| 4914066 | Pellets of clay and superabsorbent polymer | — | 1990-04-03 |