Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9283594 | Material sorting discs with variable interfacial opening | Chris Parr, Maxim P. Hoffman | 2016-03-15 |
| 8991616 | Material sorting discs with variable interfacial opening | Chris Parr, Maxim P. Hoffman | 2015-03-31 |
| 8857621 | De-inking screen with air knife | Sean Austin, Engel Visscher | 2014-10-14 |
| 8424684 | Multi-diameter disc assembly for material processing screen | Chris Parr, Steve Miller | 2013-04-23 |
| 8336714 | Heating system for material processing screen | Steve Miller | 2012-12-25 |
| 8307987 | Electrostatic material separator | Steve Miller, Roy Miller | 2012-11-13 |
| 7942273 | Cross flow air separation system | Roy Miller, Steve Miller | 2011-05-17 |