Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904789 | Process for the preparation of unsymmetrical dihydropyridines | Paul Naab, Willi Lange | 1990-02-27 |
| 4600778 | Process for the preparation of 1,4-dihydropyridinedicarboxylic esters | Wolfgang Koebernick, Arthur Haaf, Paul Naab, Michael Preiss | 1986-07-15 |