Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7693312 | Method for authenticating an electronic signature | Anthony E. Zank | 2010-04-06 |
| 7190815 | Method for authenticating an electronic signature | Anthony E. Zank | 2007-03-13 |