Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696261 | Piperidine-triazine compounds suitable for use as stabilisers for organic materials | Graziano Vignali, Fabrizio Guizzardi | 1997-12-09 |
| 5679794 | Polymer stabilizers containing both hindered amine and hydroxylamine moieties | Joseph Suhadolnik, Ramanathan Ravichandran, Graziano Vignali | 1997-10-21 |
| 5668198 | Polymer stabilizers containing both hindered amine and hydroxylamine moieties | Joseph Suhadolnik, Ramanathan Ravichandran, Graziano Vignali | 1997-09-16 |
| 5668199 | Polymer stabilizers containing both hindered amine and hydroxylamine moieties | Joseph Suhadolnik, Ramanathan Ravichandran, Graziano Vignali | 1997-09-16 |
| 5610211 | 2,2,6,6-tetramethylpiperidine derivatives for use as stabilizing agents for organic materials | Roberto Scrima | 1997-03-11 |