Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873328 | Process for preparing alkoxyalkylidenehydrazinopyridazine derivatives | Carlo Farina, Alberto Cerri, Francesco Parravicini | 1989-10-10 |
| 4868313 | A process for making pyrrolidone derivatives | Carlo Farina, Silvano Banfi, Ugo Pfeiffer | 1989-09-19 |
| 4824861 | Pyrrolidone derivatives and memory enhancement use thereof | Carlo Farina, Silvano Banfi, Ugo Pfeiffer | 1989-04-25 |
| 4797496 | Process for the preparation of pyrrolidone derivatives | Ugo Pfeiffer | 1989-01-10 |