Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872882 | Dyeing formulations of mixtures of red disperse dyes for the washfast dyeing of polyester fibers or mixtures thereof with cellulose fibers: benzo-di-furanone and azo dyes | Reinhard Kuhn | 1989-10-10 |
| 4872883 | Mixtures of monoazo dyestuffs | Ulrich Buhler, Klaus Hofmann | 1989-10-10 |