Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7649108 | Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes | Hans-Peter Schal, Ulrich Wolf | 2010-01-19 |
| 4344827 | Process for working up nitric acid | Wolfgang Auge, Karl-Werner Thiem, Rutger Neeff | 1982-08-17 |
| 4261908 | Process for isolating aromatic dinitro compounds | Bernd Schroeder, Wolfgang Auge, Karl-Werner Thiem | 1981-04-14 |