Issued Patents 2021
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193002 | Orienting magnetically-orientable flakes | Vladimir P. Raksha | 2021-12-07 |
| 11186110 | Article with angled reflective segments | Vladimir P. Raksha | 2021-11-30 |
| 11150595 | Optical security device based on a surface of revolution | Vladimir P. Raksha | 2021-10-19 |
| 11079525 | Matched interference pigments or foils having viewing angle dependent mismatch | Matthew R. Witzman, Paul T. Kohlmann, Charles T. Markantes | 2021-08-03 |
| 11007808 | Metameric security devices | Paul T. Kohlmann | 2021-05-18 |
| 11001720 | Flakes with undulate borders and methods of forming thereof | Alberto Argoitia, Laurence Holden | 2021-05-11 |
| 10981410 | Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array | Vladimir P. Raksha, Paul G. Coombs, Robert B. Sargent, Michael Ray Nofi | 2021-04-20 |
| 10899930 | Asymmetric pigment | — | 2021-01-26 |