Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650424 | Cyclic urea derivatives, pharmaceutical compositions containing these compounds and processes for preparing them | Frank Himmelsbach, Helmut Pieper, Volkhard Austel, Guenter Linz, Johannes Weisenberger +1 more | 1997-07-22 |
| 5591769 | Cyclic imino derivatives and pharmaceutical compositions containing them | Frank Himmelsbach, Volkhard Austel, Helmut Pieper, Wolfgang Eisert, Johannes Weisenberger +2 more | 1997-01-07 |