Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40588 | Vending machine audit monitoring system with matrix interface | John Cowles, Irwin D. Morris, Gerald W. Smith | 2008-11-25 |
| RE39234 | Vending machine audit monitoring system | John Cowles, Irwin D. Morris, Gerald W. Smith | 2006-08-08 |
| 5924081 | Vending machine audit monitoring system with matrix interface | John Cowles, Irwin D. Morris, Gerald W. Smith | 1999-07-13 |
| 5442568 | Vending machine audit monitoring system | John Cowles, Irwin D. Morris, Gerald W. Smith | 1995-08-15 |