Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347034 | Process for the production of poly(O-alkylurethanes) of the diphenyl methane series | Gunter Hammen, Stefan Wershofen | 1994-09-13 |
| 5345012 | Process for the preparation of dinitrotoluene | Gerhard Wiechers, Rudolf Sundermann, Uwe J. Zarnack | 1994-09-06 |