Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599451 | Rotating extrusion die with spray nozzle | Don R. Bittner | 2003-07-29 |
| 6533973 | Extrusion die for biodegradable material with die orifice modifying device and flow control device | Donald R. Bittner | 2003-03-18 |