Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661807 | Authentication system using one-time passwords | Richard Henry Guski, Stephen M. Matyas, Donald B. Johnson, Don Coppersmith | 1997-08-26 |
| 5592553 | Authentication system using one-time passwords | Richard Henry Guski, Stephen M. Matyas, Donald B. Johnson, Don Coppersmith | 1997-01-07 |