Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879138 | Composition for plastic article with unitarily molded foam layer | Marion Johnson, Granville J. Hahn | 1989-11-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879138 | Composition for plastic article with unitarily molded foam layer | Marion Johnson, Granville J. Hahn | 1989-11-07 |