Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6935504 | Passive interlock structure | Karl M. Ritter | 2005-08-30 |
| 6508395 | Stackable shipping container | — | 2003-01-21 |
| 5979746 | Tray apparatus with reinforced corner structure | Russell A. Leavitt, Elizabeth G. Wilson | 1999-11-09 |
| 5853120 | Tray apparatus with reinforced corner structure | Russell A. Leavitt, Elizabeth G. Wilson | 1998-12-29 |