Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641071 | Convertible material separating apparatus, and convertible kits | James L. Read | 1997-06-24 |
| 5501343 | Soil feeding apparatus with interruptor and method | — | 1996-03-26 |
| 5398815 | Landfill waste material separating method | — | 1995-03-21 |
| 5322170 | Waste material separating apparatus and method | — | 1994-06-21 |
| 5244098 | Material separating apparatus and method | — | 1993-09-14 |
| 5219078 | Material separating and sizing apparatus with vibrating rods and method | — | 1993-06-15 |