Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4542223 | Process for the preparation of cationic methine dyestuffs | Roderich Raue, Hans-Peter Kuhlthau | 1985-09-17 |
| 4439372 | Process for the preparation of styryl dyestuffs | Herbert Hugl, Gerhard Wolfrum | 1984-03-27 |
| 4281112 | Process for the preparation of cationic dyestuffs | Roderich Raue, Harald Gleinig | 1981-07-28 |