Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6086475 | Method of forming a grain pile | John W. Donahue | 2000-07-11 |
| RE32536 | Storage system for granular materials | — | 1987-11-03 |
| 4493248 | Storage system for granular materials | — | 1985-01-15 |
| 4454807 | Storage system for granular materials | — | 1984-06-19 |