Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4731094 | Dye mixtures | Helga Kaiser, Peter Eugster | 1988-03-15 |
| 4549989 | Process for the preparation of monoaminoanthraquinones | Paul Schmutz | 1985-10-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4731094 | Dye mixtures | Helga Kaiser, Peter Eugster | 1988-03-15 |
| 4549989 | Process for the preparation of monoaminoanthraquinones | Paul Schmutz | 1985-10-29 |