Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395214 | Foam extrusion apparatus having downstream upper and lower hinged shaping means and side restraining means | Ben Stoyanov | 1983-07-26 |
| 4371488 | Method and apparatus for extruding foamed bodies involving the use of adjustable traction shaping rolls | Ben Stoyanov | 1983-02-01 |
| 4364722 | Foam extrusion die assembly | — | 1982-12-21 |
| 4271107 | Foam extrusion apparatus and method | — | 1981-06-02 |
| 4247276 | Vacuum extrusion apparatus for forming foamed plastic products | — | 1981-01-27 |
| 4234529 | Method and apparatus for shaping plastic foams | — | 1980-11-18 |
| 4211739 | Foam extrusion apparatus and method | — | 1980-07-08 |
| 4201534 | Foam extrusion die assembly | — | 1980-05-06 |
| 4199310 | Extrusion apparatus | — | 1980-04-22 |