Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360454 | Tanning of leather and fur | Norbert Grief, Knut Oppenlaender, Hermann Birkhofer, Brigitte Wegner | 1994-11-01 |
| 5298635 | Tertiary amides useful as low-foam wetting agents in the textile industry | Eberhard Beckmann, Ralf Brueckmann, Peter Freyberg, Erich Kromm | 1994-03-29 |