Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879138 | Composition for plastic article with unitarily molded foam layer | Granville J. Hahn, Ramiro V. Ramoos | 1989-11-07 |
| 4872573 | Plastic closure with barrier coating | Granville J. Hahn | 1989-10-10 |
| 4866100 | Composition for plastic article with unitarily molded foam layer | Granville J. Hahn, Ramiro V. Ramos | 1989-09-12 |