Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8025952 | Printed magnetic ink overt security image | Cornelis Jan Delst, Paul G. Coombs, Charles T. Markantes, Alberto Argoitia | 2011-09-27 |
| 7934451 | Apparatus for orienting magnetic flakes | Jay M. Holman, Paul G. Coombs, Charles T. Markantes, Roger W. Phillips | 2011-05-03 |
| 7880943 | Patterned optical structures with enhanced security feature | Wilfred C. Kittler, Jr., Roger W. Phillips, Garth Zambory | 2011-02-01 |
| 7876481 | Patterned optical structures with enhanced security feature | Roger W. Phillips | 2011-01-25 |