Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366277 | Compounds having two bis (2,2,6,6-tetramethyl-4-piperidyl)-substituted heterocyclic rings and polymers containing same | — | 1982-12-28 |
| 4358555 | Stabilizers for halogen containing polymers comprising alkyltin compounds, zinc mercaptoesters and basic alkali or alkaline earth metal compounds | — | 1982-11-09 |
| 4356279 | 2,2,6,6-Tetramethyl-4-piperidyl-substituted heterocyclic ring compound and polymers containing same | — | 1982-10-26 |
| 4316837 | Polyalkylated 4-aminopiperidine derivatives as stabilizers for synthetic polymers | Mary J. Zestermann | 1982-02-23 |