Issued Patents 1982
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357245 | Water-soluble copolymer and its preparation | Ulrich Riegel, Martin Hille, Heinz Wittkus | 1982-11-02 |
| 4323363 | Dyeing of mixed fibers | Gert Brachten, Heinz Helling, Joachim Ribka | 1982-04-06 |
| 4320060 | Process for the preparation of derivatives of 3-(4-hydroxy-anilino)carbazole | Steffen Piesch, Herbert Wille, Wolf Weidemuller, Artur Meyer | 1982-03-16 |
| 4314052 | Polyester which is soluble or dispersible in water, a process for its preparation and its use as a levelling auxiliary, levelling auxiliaries and processes for uniform dyeing | Karl Hintermeier, Joachim Ribka, Walter Dursch, Walter Rupp | 1982-02-02 |
| 4309523 | Water-soluble copolymer of acrylamidomethylpropanesulfonic acids salts | Ulrich Riegel, Martin Hille, Heinz Wittkus | 1982-01-05 |