Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4781559 | Plastic pellet sorting apparatus with extruded side-stream monitoring | Ronald D. Mathis, Gregory M. Swisher | 1988-11-01 |
| 4756855 | Automatic method for sorting plastic pellets | Ronald D. Mathis, Gregory M. Swisher | 1988-07-12 |