Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867669 | Safety air plug and extrusion apparatus using same | Flavio Da Silva, Robert F. Shamet | 1989-09-19 |
| 4846648 | Triple-wall foam coextrusion apparatus | Robert F. Shamet, Flavio Da Silva, Horst Eigruber | 1989-07-11 |
| 4731002 | Triple-wall foam coextrusion apparatus | Robert F. Shamet, Flavio Da Silva, Horst Eigruber | 1988-03-15 |