Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6397328 | Method for verifying the expected postage security device and an authorized host system | Frederick W. Ryan, Jr. | 2002-05-28 |
| 6260144 | Method for verifying the expected postal security device in a postage metering system | Robert A. Cordery, Frederick W. Ryan, Jr. | 2001-07-10 |
| 5293319 | Postage meter system | Michael J. DeSha | 1994-03-08 |
| 4796193 | Postage payment system where accounting for postage payment occurs at a time subsequent to the printing of the postage and employing a visual marking imprinted on the mailpiece to show that accounting has occurred | — | 1989-01-03 |