Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662078 | System and method for item management via an electronic communication network | William David Hardgrave | 2003-12-09 |
| 6010239 | Automatic item-driven system for deposit and pick-up | William David Hardgrave | 2000-01-04 |