Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 | Friedrich Engelhardt, Karl Hintermeier, Joachim Ribka, Walter Rupp | 1982-02-02 |