Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11504990 | Security device formed by printing with special effect inks | Vladimir P. Raksha, Charles T. Markantes | 2022-11-22 |
| 11441041 | Magnetic multilayer pigment flake and coating composition | Vladimir P. Raksha, Paul T. Kohlmann, Cornelis Jan Delst | 2022-09-13 |
| 11237049 | Optical filter and spectrometer | Paula Smith, Curtis R. Hruska, Benjamin F. Catching | 2022-02-01 |
| 11230127 | Method and apparatus for orienting magnetic flakes | Vladimir P. Raksha, Charles T. Markantes | 2022-01-25 |