Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345012 | Process for the preparation of dinitrotoluene | Thomas Schieb, Gerhard Wiechers, Rudolf Sundermann | 1994-09-06 |
| 5314588 | Process for recovering polysocyanates from the distillation residues obtained in the production of tolylene diisocyanate | Volker Weintritt, Christian König | 1994-05-24 |