Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468349 | Process for the preparation of solutions of cationic azo dyestuffs | Karl Linhart, Harald Gleinig, Gunther Boehmke | 1984-08-28 |
| 4343936 | Process for the preparation of cationic dyestuffs | Harald Gleinig, Bernd Berger-Lohr | 1982-08-10 |
| 4342867 | Process for the preparation of cationic dyestuffs | Harald Gleinig, Bernd Berger-Lohr | 1982-08-03 |
| 4233213 | Process for the continuous indirect diazotization of aromatic amines | Georg Dehmel, Norbert Hamm | 1980-11-11 |