Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888412 | Tanning assistant | Klaus Ebel, Wolfgang Reuther, Rolf Fikentscher, Dietrich Lach, Rolf Streicher | 1989-12-19 |
| 4801693 | Substituted sulfobenzene and triazine-containing reactive dyes | Manfred Patsch | 1989-01-31 |