Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701249 | Service and usage data collection using a special mail piece | — | 1997-12-23 |
| 5693693 | Bar code printing and scanning using wax based invisible fluorescent inks | Judith D. Auslander | 1997-12-02 |
| 5598477 | Apparatus and method for issuing and validating tickets | — | 1997-01-28 |