Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4435589 | Process for the preparation of dimethyl succinylosuccinate, the disodium salt thereof, dianilinodihydroterephthalic acids, the dimethyl esters and salts thereof, and dianilinoterephthalic acids, and the dimethyl esters and salts thereof | Meinhard Rolf, Rutger Neeff, Hans-Volker Runzheimer | 1984-03-06 |
| 4260778 | Process for the preparation of thioindigo compounds | Klaus Wunderlich | 1981-04-07 |
| 4220779 | Process for the preparation of quinoline derivatives | Volker Ehrig, Hans-Samuel Bien, Erich Klauke | 1980-09-02 |
| 4190726 | Polycyclic dyestuffs | Klaus Wunderlich | 1980-02-26 |