Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5756812 | Process for the preparation of pure (S,S)-N-(1-ethoxycarbonyl-3-phenylpropyl) alanine | Josef Schaller | 1998-05-26 |
| 5597917 | Method for the production of N-cyclic and N,N'-dicyclic ureas and their use as chemical solvents | Markus R ossler, Martin M ullner, Gerhard Stern | 1997-01-28 |
| 5414083 | Method for the production of N-cyclic and N,N'-dicyclic ureas and their use as chemical solvents | Markus Rossler, Martin Mullner, Gerhard Stern | 1995-05-09 |
| 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 |
| 5169954 | Process for the N-alkylation of ureas | Heinz Falk | 1992-12-08 |
| 5124451 | Process for the N-alkylation or ureas | Heinz Falk | 1992-06-23 |