Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11970347 | Clean pneumatic conveying shield, mold replacement system for expanding machine and replacement method | Russell A. Heinen, Bo Chen | 2024-04-30 |
| 11559076 | Extruder with non-stop die change device and method of using same | — | 2023-01-24 |
| 11178897 | Extruder with non-stop die change device and method of using same | Liang Ma, Zhe An | 2021-11-23 |