Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6062719 | High efficiency extruder | Forest Busby, Richard O. Kirk, Kathryn S. Jones | 2000-05-16 |
| 6022133 | Multiple-screw extruder | Richard O. Kirk, Forest Busby, Kathryn S. Jones | 2000-02-08 |