Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5923406 | Personal postage stamp vending machine | Leon A. Pintsov, Steven J. Shapiro | 1999-07-13 |
| 5111030 | Postal charge accounting system | John L. Jones | 1992-05-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5923406 | Personal postage stamp vending machine | Leon A. Pintsov, Steven J. Shapiro | 1999-07-13 |
| 5111030 | Postal charge accounting system | John L. Jones | 1992-05-05 |