Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7438171 | Retractable and extendable material loader apparatus for directing material onto a conveyor | Gregory Clark, Sid Adel | 2008-10-21 |
| 7364034 | Adjustable aperture apparatus that retains dust from bulk material directed through the apparatus | Gregory Clark, John S. Pircon | 2008-04-29 |
| 7228956 | Bulk material precision transfer chute apparatus | John S. Pircon, Gregory Clark | 2007-06-12 |