Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698647 | Preparation of polymers based on basic vinyl monomers | Brigitta Huckestein, Volker Schehlmann, Rainer Blankenburg | 1997-12-16 |
| 5698649 | Copolymers based on vinyl ethers and monoethylenically unsaturated dicarboxylic anhydrides, their preparation and their use | Harald Meyer, Walter Denzinger, Hans J. Richter, Hans-Juergen Raubenheimer, Franz Frosch | 1997-12-16 |
| 5684040 | Compositions in the form of solid solutions | Sven Grabowski, Winfried Mueller, Joerg Rosenberg, Rudolf Binder | 1997-11-04 |
| 5674436 | Preparation of hydrogen peroxide/polymer complexes in powder form | Jorg Breitenbach | 1997-10-07 |
| 5641516 | Compositions which contain active substances and are in the form of solid particles | Sven Grabowski, Joerg Rosenberg | 1997-06-24 |
| 5635169 | Soluble copolymers for hair cosmetics | Rainer Blankenburg | 1997-06-03 |