Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554966 | Process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas | Andreas Kramer, Johann-Peter Melder, Heinz Rutter, Wolfgang Siegel, Hans-Jurgen Weyer | 2003-04-29 |