Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11865548 | Spiral separators and parts therefore | Ezra McKenzie | 2024-01-09 |
| 6305922 | Spiral fed multi-layer tubular die | — | 2001-10-23 |
| 5538411 | Spiral fed multi-layer tubular die | — | 1996-07-23 |
| 5261805 | Die for extrusion of blown plastic film | — | 1993-11-16 |