Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938047 | Material storage and retrieval assembly | Bill Schnittker | 1999-08-17 |
| 4889263 | Sealed bin container | John Ellis | 1989-12-26 |
| 4650098 | Sealed barrier container | John Ellis | 1987-03-17 |
| 4592494 | Sealed barrier container | John Ellis | 1986-06-03 |