Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10344431 | Security sheet or document having one or more enhanced watermarks | William Blake, Kraig M. Brigham, James Callahan, Paul F. Cote, Michael Darroch +3 more | 2019-07-09 |
| 9708773 | Security sheet or document having one or more enhanced watermarks | William Blake, Kraig M. Brigham, James Callahan, Paul F. Cote, Michael Darroch +3 more | 2017-07-18 |