Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798887 | Azo dyes of methylaniline disulfonic acid coupled with naphthylamine sulfonic acid | Heinz-Wolfgang Krueger, Manfred Patsch | 1989-01-17 |
| 4677199 | Reactive dyes containing substituted 4-fluoropyridaz-6-one radicals | Dietmar Augart, Heinz Eilingsfeld, Heinz-Wolfgang Krueger, Ortwin Schaffer, Guenther Seybold | 1987-06-30 |
| 4438282 | Preparation of sulfides | Guenther Seybold | 1984-03-20 |