Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6953869 | Process for working up secondary components in the preparation of dinitrotoluene | Dietmar Wastian, Wolfgang Lorenz, Berthold Keggenhoff | 2005-10-11 |
| 6936741 | Process for working up the waste water obtained in the preparation of dinitrotoluene | Dietmar Wastian, Wolfgang Lorenz, Berthold Keggenhoff | 2005-08-30 |