Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6988080 | Automated security and reorder system for transponder tagged items | Robert Zack, Marshall K. Dobry, Diane M. Berglund | 2006-01-17 |
| 6323782 | Unattended item delivery system | Robert Zack | 2001-11-27 |