Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657015 | Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines | Ulrich Riegel, Matthias Weismantel, Volker Frenz, Thomas Daniel | 2003-12-02 |
| 6565768 | Method for producing water-swellable hydorphilic polymers, said polymers and use thereof | Joachim Dentler, Norbert Herfert, Rudolf Schliwa, Uwe Stuven | 2003-05-20 |
| 6559239 | Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones | Ulrich Riegel, Matthias Weismantel, Volker Frenz, Thomas Daniel | 2003-05-06 |
| 6503979 | Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones | Rüdiger Funk, Volker Frenz, Ulrich Riegel, Matthias Weismantel, Thomas Daniel | 2003-01-07 |