Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5557513 | Checkout lane alert system and method for stores having express checkout lanes | John D. Nelson | 1996-09-17 |
| 5390107 | Checkout lane alert system and method | John D. Nelson | 1995-02-14 |
| 5305390 | Person and object recognition system | Thomas C. Guthrie | 1994-04-19 |
| 5138638 | System for determining the number of shoppers in a retail store and for processing that information to produce data for store management | — | 1992-08-11 |
| 4713811 | Automatic mode switching unit for a serial communications data system | — | 1987-12-15 |
| 4245343 | Automatic shunt device | — | 1981-01-13 |