Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853440 | Polymeric stabilizer compounds and process for their preparation | Arnaldo Roggero | 1989-08-01 |
| 4833211 | Process for the preparation of solid polymeric stabilizer compounds | Arnaldo Roggero, Mario G. Clerici | 1989-05-23 |
| 4797451 | Solid polymeric stabilizer compounds and process for their manufacture | Arnaldo Roggero, Carlo Busetto | 1989-01-10 |