Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6673960 | Work-up of distillation residues from the synthesis of toluene diisocyanate | Hans Volkmar Schwarz, Michael Sander, Eckhard Ströfer, Rene Leuthold, Burghard Hantel +2 more | 2004-01-06 |