Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7894519 | Wireless event authentication system | C. Norman Winningstad | 2011-02-22 |
| 7496140 | Wireless event authentication system | C. Norman Winningstad | 2009-02-24 |
| 7483485 | Wireless event authentication system | C. Norman Winningstad | 2009-01-27 |