Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11039629 | High thermal transfer hollow core extrusion screw assembly | Allan C. Spellmeier, Philip B. Wiltz | 2021-06-22 |
| 10893688 | High thermal transfer hollow core extrusion screw assembly | Allan C. Spellmeier, Philip B. Wiltz | 2021-01-19 |