Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360601 | Process for the preparation of isocyanic acid by the decomposition of N,N-disubstituted ureas | Martin Mullner, Erich Schulz, Gerhard Stern, Heinz Falk | 1994-11-01 |
| 5283362 | Process for the preparation of pure N,N'-asymmetrically substituted phenylureas | Heinz Falk | 1994-02-01 |