Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9283594 | Material sorting discs with variable interfacial opening | Maxim P. Hoffman, Dane Campbell | 2016-03-15 |
| 8991616 | Material sorting discs with variable interfacial opening | Maxim P. Hoffman, Dane Campbell | 2015-03-31 |
| 8424684 | Multi-diameter disc assembly for material processing screen | Dane Campbell, Steve Miller | 2013-04-23 |