Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320060 | Process for the preparation of derivatives of 3-(4-hydroxy-anilino)carbazole | Steffen Piesch, Friedrich Engelhardt, Wolf Weidemuller, Artur Meyer | 1982-03-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320060 | Process for the preparation of derivatives of 3-(4-hydroxy-anilino)carbazole | Steffen Piesch, Friedrich Engelhardt, Wolf Weidemuller, Artur Meyer | 1982-03-16 |