Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11504990 | Security device formed by printing with special effect inks | Paul G. Coombs, Charles T. Markantes | 2022-11-22 |
| 11441041 | Magnetic multilayer pigment flake and coating composition | Paul T. Kohlmann, Cornelis Jan Delst, Paul G. Coombs | 2022-09-13 |
| 11241901 | Security ink based security feature | Cornelius Jan Delst | 2022-02-08 |
| 11230127 | Method and apparatus for orienting magnetic flakes | Paul G. Coombs, Charles T. Markantes | 2022-01-25 |