Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886849 | Butene-1 molding resin blends | Patrick M. Hughes | 1989-12-12 |
| 4882229 | Blends of high molecular weight polybutylene with low density polyethylene | — | 1989-11-21 |
| 4876156 | Film and sheet capable of forming retortable and easy-open packagings | — | 1989-10-24 |
| 4870134 | Film, sheet and laminate capable of forming easy-open packagings | — | 1989-09-26 |
| 4808662 | Peelable seals using polybutylene | — | 1989-02-28 |