Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5465847 | Refuse material recovery system | — | 1995-11-14 |
| 5363972 | Conveyor apparatus with powered leveling roll | — | 1994-11-15 |
| 5051172 | Disc screen for material separation | — | 1991-09-24 |
| 4865720 | Debris separator system | — | 1989-09-12 |
| 4824559 | Rotary air separator | John Makin | 1989-04-25 |
| 4789068 | Wood chip classifying system | — | 1988-12-06 |