Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703949 | Method for establishing secure communications among processing devices | — | 1997-12-30 |
| 5671280 | System and method for commercial payments using trusted agents | — | 1997-09-23 |
| 5642419 | Method for acquiring and revalidating an electronic credential | — | 1997-06-24 |
| 5621797 | Electronic ticket presentation and transfer method | — | 1997-04-15 |