Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7210035 | System and method for graphical indicia for the certification of records | Michael D. Doyle, Robert Hamilton, Marc C. Perrone, Paul F. Doyle | 2007-04-24 |
| 7047415 | System and method for widely witnessed proof of time | Michael D. Doyle, Paul F. Doyle, Jeffrey Darius Roberts, Kirk James Wolf, Stephen P. Goetze | 2006-05-16 |
| 7017046 | System and method for graphical indicia for the certification of records | Michael D. Doyle, Robert Hamilton, Marc Perrone, Paul F. Doyle | 2006-03-21 |