Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5586992 | Dyeing cellulose-containing textile material with hydrogenated indigo | Georg Schnitzer, Michael Schmitt, Erich Kromm, Harald Schlueter, Rudolf Krueger +1 more | 1996-12-24 |
| 4333190 | Process for extracting water from desizing liquors | Wilhelm Ruettiger, Albrecht Wuerz | 1982-06-08 |