Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6362178 | 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors | Ulrich Niewohner, Mazen Es-Sayed, Thomas Schenke, Karl-Heinz Schlemmer, Jörg Keldenich +5 more | 2002-03-26 |
| 6174884 | 1,5-dihydro-pyrazolo[34-D]-pyrimidinone derivatives | Ulrich Niewohner, Ulrich Rosentreter, Thomas Schenke, Jörg Keldenich, Erwin Bischoff +3 more | 2001-01-16 |