Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9020858 | Presence-of-card code for offline payment processing system | Fan Jiang, Michael William Springer, Aneto Pablo Okonkwo, Patrick Pui Wah Leung | 2015-04-28 |
| 8959034 | Transaction signature for offline payment processing system | Fan Jiang, Michael William Springer, Gokhan H. Bakir, Patrick Pui Wah Leung, Aneto Pablo Okonkwo | 2015-02-17 |
| 8898088 | In-card access control and monotonic counters for offline payment processing system | Michael William Springer, Ismail Cem Paya, Aneto Pablo Okonkwo, Patrick Pui Wah Leung, Fan Jiang | 2014-11-25 |