Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4581174 | Process for the continuous preparation of organic mono-and/or polyisocyanates | Rainer Ohlinger, Harald Schnez, Ludwig Pfannenstiehl, Hans J. Raabe | 1986-04-08 |
| 4289589 | Separating toluene diisocyanate and/or higher boiling solvents from distillation residues of the toluene diisocyanate manufacture using a fluidized bed | Waldemar Koehler, Ludwig Vogel, Eckhard Hetzel | 1981-09-15 |