Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7424135 | Security check provision | Maurice M Gifford, Christopher Henry Seal | 2008-09-09 |
| 6907135 | Security check provision | Maurice M Gifford, Christopher Henry Seal | 2005-06-14 |
| 6687389 | Imaging apparatus | Christopher Henry Seal | 2004-02-03 |
| 6549118 | Security apparatus and method | Christopher Henry Seal, Maurice M Gifford | 2003-04-15 |
| 6333988 | Personal identification | Christopher Henry Seal, Maurice M Gifford | 2001-12-25 |
| 6309069 | Personal identification | Christopher Henry Seal, Maurice M Gifford | 2001-10-30 |
| 5386771 | Disposable unitary dampening roller | Anthony Sorresso | 1995-02-07 |
| 5164847 | Holographic element | Giles Russell Chamberlin | 1992-11-17 |
| 4946245 | Optical filters | Giles Russell Chamberlin, David B. Payne | 1990-08-07 |