Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655579 | Machine readable coded frame for personal postage | Paula K. Dumas, David L. Patton | 2003-12-02 |
| 6503329 | Modification of receiver surface to reject stamp cancellation information | David L. Patton, Frank Pincelli | 2003-01-07 |