Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8549602 | System and method for handling permits for user authentication tokens | — | 2013-10-01 |
| 6308277 | Virtual certificate authority | Charles S. Walton | 2001-10-23 |
| 6035402 | Virtual certificate authority | Charles S. Walton | 2000-03-07 |