Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343936 | Process for the preparation of cationic dyestuffs | Harald Gleinig, Kurt Breig | 1982-08-10 |
| 4342867 | Process for the preparation of cationic dyestuffs | Harald Gleinig, Kurt Breig | 1982-08-03 |
| 4281124 | Reactive quaternary compounds, their preparation and their use for increasing the affinity of anionic dyestuffs for fibres which contain nitrogen or hydroxyl groups | Karl H. Schundehutte, Manfred Soll | 1981-07-28 |