Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8991585 | Rail car unloading device | Brent Craig Mast | 2015-03-31 |
| 7063497 | Drive over conveyor pit assembly | Brent Craig Mast | 2006-06-20 |
| 6966740 | Drive over conveyor pit assembly | Brent Craig Mast | 2005-11-22 |