Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888444 | Substituted hydroxylamine ester stabilizers | Stephen D. Pastor | 1989-12-19 |
| 4876300 | Polyolefin compositions stabilized with long chain N,N-dialkylhydroxylamines | Raymond Seltzer, Ambelal R. Patel | 1989-10-24 |
| 4808644 | Substituted (4-hydroxyphenylthioalkyl) derivatives | John D. Spivack, Stephen D. Pastor | 1989-02-28 |
| 4808645 | 6-(1-hydro-2,2,6,6-tetraalkyl-piperidine-4-oxy)dibenzodioxaphosphepin and dioxaphosphocin process stabilizers | John D. Spivack | 1989-02-28 |