Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679794 | Polymer stabilizers containing both hindered amine and hydroxylamine moieties | Ramanathan Ravichandran, Valerio Borzatta, Graziano Vignali | 1997-10-21 |
| 5668198 | Polymer stabilizers containing both hindered amine and hydroxylamine moieties | Ramanathan Ravichandran, Valerio Borzatta, Graziano Vignali | 1997-09-16 |
| 5668199 | Polymer stabilizers containing both hindered amine and hydroxylamine moieties | Ramanathan Ravichandran, Valerio Borzatta, Graziano Vignali | 1997-09-16 |