Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4226704 | Collector discharge apparatus | Malcolm M. Paterson, Michael R. Grubbs, Eugene J. Coulombe | 1980-10-07 |
| 4210527 | Twin air classifier system | Malcolm M. Paterson, Stewart B. Olson | 1980-07-01 |
| 4194633 | Adjustable conveyor | Malcolm M. Paterson, Charles Christensen | 1980-03-25 |