Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219551 | Aminoalkoxyphenylpyrrolidone antihypertonic agents and use thereof | Dieter Seidelmann, Ralph Schmiechen, Bernd Muller | 1980-08-26 |
| 4193926 | 4-(Polyalkoxy phenyl)-2-pyrrolidones | Ralph Schmiechen, Reinhard Horowski, Dieter Palenschat, Helmut Wachtel, Wolfgang Kehr | 1980-03-18 |
| 4186129 | 5-(Substituted phenyl)-oxazolidinones and their sulfur analogs | Andreas Huth, Ralph Schmiechen, Wolfgang Kehr, Helmut Wachtel, Herbert Schneider +1 more | 1980-01-29 |